sda in lcd module for sale

PO Box, APO/FPO, Afghanistan, Africa, Alaska/Hawaii, Albania, American Samoa, Andorra, Argentina, Armenia, Azerbaijan Republic, Bahrain, Bangladesh, Belarus, Bermuda, Bhutan, Bolivia, Bosnia and Herzegovina, Brunei Darussalam, Bulgaria, Cambodia, Central America and Caribbean, Chile, China, Colombia, Cook Islands, Croatia, Republic of, Cyprus, Czech Republic, Ecuador, Estonia, Falkland Islands (Islas Malvinas), Fiji, Finland, French Guiana, French Polynesia, Georgia, Germany, Gibraltar, Greece, Greenland, Guam, Guernsey, Guyana, Hong Kong, Hungary, Iceland, India, Indonesia, Iraq, Jersey, Jordan, Kazakhstan, Kiribati, Korea, South, Kuwait, Kyrgyzstan, Laos, Lebanon, Liechtenstein, Lithuania, Macau, Macedonia, Malaysia, Maldives, Malta, Marshall Islands, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Nauru, Nepal, New Caledonia, Niue, Norway, Oman, Pakistan, Palau, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Qatar, Romania, Russian Federation, Saint Pierre and Miquelon, San Marino, Saudi Arabia, Serbia, Solomon Islands, Sri Lanka, Suriname, Svalbard and Jan Mayen, Taiwan, Tajikistan, Tonga, Turkey, Turkmenistan, Tuvalu, US Protectorates, Ukraine, United Arab Emirates, Uzbekistan, Vanuatu, Vatican City State, Venezuela, Wallis and Futuna, Western Samoa, Yemen

PO Box, APO/FPO, Afghanistan, Africa, Alaska/Hawaii, Albania, American Samoa, Andorra, Armenia, Azerbaijan Republic, Bahrain, Bangladesh, Belarus, Bermuda, Bhutan, Bosnia and Herzegovina, Brunei Darussalam, Bulgaria, Cambodia, Central America and Caribbean, Cook Islands, Cyprus, Czech Republic, Estonia, Fiji, French Polynesia, Georgia, Germany, Gibraltar, Greece, Greenland, Guam, Guernsey, Hungary, Iceland, India, Indonesia, Iraq, Jersey, Jordan, Kazakhstan, Kiribati, Korea, South, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Liechtenstein, Lithuania, Luxembourg, Macau, Macedonia, Malaysia, Maldives, Malta, Marshall Islands, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Nauru, Nepal, New Caledonia, New Zealand, Niue, Norway, Oman, Pakistan, Palau, Papua New Guinea, Philippines, Poland, Qatar, Russian Federation, Saint Pierre and Miquelon, San Marino, Saudi Arabia, Serbia, Slovakia, Slovenia, Solomon Islands, South America, Sri Lanka, Svalbard and Jan Mayen, Taiwan, Tajikistan, Tonga, Turkey, Turkmenistan, Tuvalu, US Protectorates, Ukraine, United Arab Emirates, Uzbekistan, Vanuatu, Vatican City State, Wallis and Futuna, Western Samoa, Yemen

By continuing to use AliExpress you accept our use of cookies (view more on our Privacy Policy). You can adjust your Cookie Preferences at the bottom of this page.

LCD Module, 20 character Dual Row, Blue/Green, LED backlight, for use with the SDA 100 controller. Replacement for when LCD backlighting becomes too dim, or screen becomes too dark to read. If you are unsure if this part is necessary for your controller please contact us at support@steppir.com

Adding a display to Raspberry PI Pico allows getting real time information from connected devices without using a computer from USB port. I2C LCD displays (with PCF8574 backpack) are one of best solution to keep wiring simple

I2C LCD displays are common LCD displays, usually composed of 16 columns x 2 rows blocks, but also different configurations can be found. Differently from simple LCD displays, they include a small panel soldered in its backside, including chips able to reduce their connection wires. The I2C LCD display usually has a PCF8574 chip, which is a device able to convert I2C serial communication into parallel connections.

To connect an I2C LCD Display with your Raspberry PI Pico, you just need to wire the Vcc and GND PINs from display to VSYS and a GND PINs of RPI Pico, then SDA and SCL PINs from the I2C Display to a couple of SDA and SCL PINs from Raspberry PI Pico, belonging to the same I2C bus, as shown in the picture on the following wiring diagram chapter.

A working solution uses the dhylands-python_lcd module including a generic API to interface to LCD displays. But this class implements commands to be sent to the LCD without caring about how to send them. The reason is that there are many different backpacks and every solution can be implemented in many different ways. The ones created with a PCF8574 use I2C as communication protocol, in this case, you need a sort of driver able to send commands via I2C. This function is implemented with a second module from T-622 user, also available from T-622 GitHub page.

As usual, I suggest adding from now to your favourite e-commerce shopping cart all the needed hardware, so that at the end you will be able to evaluate overall costs and decide if continue with the project or remove them from the shopping cart. So, hardware will be only:

Prepare cabling according to the previous paragraph. Connect RPI Pico to Thonny (you can refer to my tutorial about First steps with Raspberry PI Pico).

Before going into the usage explanation, you have to be sure that your LCD’s I2C address is correct. This is a unique address shared between I2C devices to make them able to talk on the same shared wire. This is usually a hexadecimal value and all devices connected to your RPI Pico can be scanned by copy-paste of the following code in your Thonny shell (you can copy all lines together):

As I2C LCD with PCF8574 backpack use PCF8574 chip for I2C communication, you will probably get its default address (0x27). But if your project includes more PCF8574-based chips, then you will need to identify the LCD one between those that will be shown. In case of missing devices, please check your cabling.

Starting to use your LCD device, you can run a generic test with the T-622 test script, which I have pre-configured for 16×2 LCDs using I2C0 channel (ports GP0 and GP1 according to my wiring diagram). This modified script can be get from my download area (use the following link: i2c_lcd_test). Save this file in your Raspberry PI Pico root folder or in your computer and open it with Thonny IDE.

If you will see nothing, please check your cabling. Another common issue with I2C LCD display is getting a clean screen which is only powering on and off. This means that your connection is correct and everything is working, you have only to adjust your LCD contrast by rotating the screw positioned in your LCD backside, which controls a potentiometer managing contrast:

The LCD API used has a flexible feature allowing users to display also complex icons inside a single cell. Some special characters are already available and depend on your LCD ROM (Read Only Memory, space not visible to the user). You can use these chars with “lcd.putchar(chr())” function.

The first 8 characters (from 0 to 7) character-generator RAM. This means that you can define and design any icon you want to display by identifying pixels to be put on/off for each char block, made of 8 rows and 5 columns of pixels. Each row A good description of how to define a generic icon is explained in https://github.com/dhylands/python_lcd.

I’ve also prepared a simple MS Excel file that can help you designing your personal icon and generating related code to use in your script. You can download it from this link: bytearray code generator.

With this file, while you set to 1 or 0 (zero) the cells in the drawing zone, these cells will change color according to their value and the code will be generated. In this way, you will have an immediate preview of what you are drawing and related code to use:

You can use the generated code with “lcd.custom_char()” command. An example usage is built in my pico_i2c_lcd script. Download and open it in your Thonny IDE.

Following part is where the custom icon is generated, using the code coming from my generator. This icon is associated to custom char (with id value going from 0 to 7):

When I adjust the trimmer for the contrast on the I2C breakout board, the screen is not affected (always white): for high contrast do not appear the black line in the screen. Anyhow if I reduce too much the contrast, the lights turn off.

I already check basis elements like contrast, wiring etc. I specify that I bought the LCD without the I2C module and then I soldered the I2C module. In my opinion the soldering quality is good, so probably there are no electrical problems of connection between the screen and the I2C interface.

We are based in Guangdong, China, start from 2015,sell to Domestic Market(20.00%),North America(10.00%),South America(10.00%),Eastern Europe(10.00%),Southeast Asia(5.00%),Africa(5.00%),Oceania(5.00%),Mid East(5.00%),Eastern Asia(5.00%),Western Europe(5.00%),Central America(5.00%),Northern Europe(5.00%),Southern Europe(5.00%),South Asia(5.00%). There are total about 5-10 people in our office.

What is the purpose of declaring LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); if we are using pins A4 and A5? I know that 0x27 is the ic address but what is the rest for?

there is a bit more but i"ll leave that for you to look into. in a more sophisticated IDE you normally can right click to a sub menu that will take you to the definition. it"s a great way to help you get a deeper understanding of how things work.0

I am getting a error while i m going to add zip file of lcd library error id this zip file does not contains a valid library please help me to resolve this issue as soon as possible.....

Hey guys. My LCD works fine using the above instructions (when replacing the existing LCD library in the Arduino directory) but I can"t get the backlight to ever switch off. Suggestions?

This article shows how to use the SSD1306 0.96 inch I2C OLED display with the Arduino. We’ll show you some features of the OLED display, how to connect it to the Arduino board, and how to write text, draw shapes and display bitmap images. Lastly, we’ll build a project example that displays temperature and humidity readings.

The organic light-emitting diode(OLED) display that we’ll use in this tutorial is the SSD1306 model: a monocolor, 0.96-inch display with 128×64 pixels as shown in the following figure.

The OLED display doesn’t require backlight, which results in a very nice contrast in dark environments. Additionally, its pixels consume energy only when they are on, so the OLED display consumes less power when compared with other displays.

The model we’re using here has only four pins and communicates with the Arduino using I2C communication protocol. There are models that come with an extra RESET pin. There are also other OLED displays that communicate using SPI communication.

Because the OLED display uses I2C communication protocol, wiring is very simple. You just need to connect to the Arduino Uno I2C pins as shown in the table below.

To control the OLED display you need the adafruit_SSD1306.h and the adafruit_GFX.h libraries. Follow the next instructions to install those libraries.

After wiring the OLED display to the Arduino and installing all required libraries, you can use one example from the library to see if everything is working properly.

This is an example for our Monochrome OLEDs based on SSD1306 drivers. Pick one up today in the adafruit shop! ------> http://www.adafruit.com/category/63_98

Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!

Written by Limor Fried/Ladyada for Adafruit Industries, with contributions from the open source community. BSD license, check license.txt for more information All text above, and the splash screen below must be included in any redistribution.

The Adafruit library for the OLED display comes with several functions to write text. In this section, you’ll learn how to write and scroll text using the library functions.

Then, you define your OLED width and height. In this example, we’re using a 128×64 OLED display. If you’re using other sizes, you can change that in the SCREEN_WIDTH, and SCREEN_HEIGHT variables.

The (-1) parameter means that your OLED display doesn’t have a RESET pin. If your OLED display does have a RESET pin, it should be connected to a GPIO. In that case, you should pass the GPIO number as a parameter.

The Adafruit GFX library allows us to use some alternate fonts besides the built-in fonts. It allows you to chose between Serif, Sans, and Mono. Each font is available in bold, italic and in different sizes.

The sizes are set by the actual font. So, the setTextSize() method doesn’t work with these fonts. The fonts are available in 9, 12, 18 and 24 point sizes and also contain 7-bit characters (ASCII codes) (described as 7b in the font name).

After specifying the font, all methods to write text will use that font. To get back to use the original font, you just need to call the setFont() method with no arguments:

To draw a pixel in the OLED display, you can use the drawPixel(x, y, color) method that accepts as arguments the x and y coordinates where the pixel appears, and color. For example:

Use the drawLine(x1, y1, x2, y2, color) method to create a line. The (x1, y1) coordinates indicate the start of the line, and the (x2, y2) coordinates indicates where the line ends. For example:

The drawRect(x, y, width, height, color) provides an easy way to draw a rectangle. The (x, y) coordinates indicate the top left corner of the rectangle. Then, you need to specify the width, height and color:

To draw a circle use the drawCircle(x, y, radius, color) method. The (x,y) coordinates indicate the center of the circle. You should also pass the radius as an argument. For example:

Use the the drawTriangle(x1, y1, x2, y2, x3, y3, color) method to build a triangle. This method accepts as arguments the coordinates of each corner and the color.

The library provides an additional method that you can use with shapes or text: the invertDisplay() method. Pass true as argument to invert the colors of the screen or false to get back to the original colors.

Then, click OK. Finally, in the main menu, go to File > Convert. A new file with .c extension should be saved. That file contains the C array for the image. Open that file with a text editor, and copy the array.

Copy your array to the sketch. Then, to display the array, use the drawBitmap() method that accepts the following arguments (x, y, image array, image width, image height, rotation). The (x, y) coordinates define where the image starts to be displayed.

In this section we’ll build a project that displays temperature and humidity readings on the OLED display. We’ll get temperature and humidity using the DHT11 temperature and humidity sensor. If you’re not familiar with the DHT11 sensor, read the following article:

Note:if you’re using a module with a DHT sensor, it normally comes with only three pins. The pins should be labeled so that you know how to wire them. Additionally, many of these modules already come with an internal pull up resistor, so you don’t need to add one to the circuit.

3. After installing the DHT library from Adafruit, type “Adafruit Unified Sensor” in the search box. Scroll all the way down to find the library and install it.

The code starts by including the necessary libraries. The Wire, Adafruit_GFX and Adafruit_SSD1306 are used to interface with the OLED display. The Adafruit_Sensor and the DHT libraries are used to interface with the DHT22 or DHT11 sensors.

The (-1) parameter means that your OLED display doesn’t have a RESET pin. If your OLED display does have a RESET pin, it should be connected to a GPIO. In that case, you should pass the GPIO number as a parameter.

Then, define the DHT sensor type you’re using. If you’re using a DHT11 you don’t need to change anything on the code. If you’re using another sensor, just uncomment the sensor you’re using and comment the others.

In this case, the address of the OLED display we’re using is 0x3C. If this address doesn’t work, you can run an I2C scanner sketch to find your OLED address. You can find the I2C scanner sketch here.

The temperature and humidity are saved on the t and h variables, respectively. Reading temperature and humidity is as simple as using the readTemperature() and readHumidity() methods on the dht object.

We use the setTextSize() method to define the font size, the setCursor() sets where the text should start being displayed and the print() method is used to write something on the display.

After wiring the circuit and uploading the code, the OLED display shows the temperature and humidity readings. The sensor readings are updated every five seconds.

If your DHT sensor fails to get the readings or you get the message “Failed to read from DHT sensor”, read our DHT Troubleshooting Guide to help you solve that problem.

The I2C address for the OLED display we are using is 0x3C. However, yours may be different. So, make sure you check your display I2C address using an I2C scanner sketch.

The OLED display provides an easy and inexpensive way to display text or graphics using an Arduino. We hope you’ve found this guide and the project example useful.

In this one we’ll use it to connect a Keypad to an Arduino and again save some pins, and also have a quick overview on what and how the i2c protocol works.

I2C stands for “Inter-Integrated Circuit“, it allows to connect multiple modules or “slave”, and requires only 2 wires no matter the amount of connected modules, on an Arduino you can have up to 128 slave devices.

Those address are in hex values (ex. ox20), and most module give you the possibility to change the address by either soldering some pads or using dip switches like the I2C Expander module we used.

I2C uses two pins or signals, one is SCL and the other is SDA.  Most Arduinos have only one I2C bus, one exception would be the Arduino Due which has two seperate I2C bus.

Each one of those 8 pins/ports (P0-P7) can be independently used as an input, like we used it for when connecting the Bourns encoder or as an output to control some LEDs for example.

The main difference between those two modules, is their pinouts, the LCD Backpack pinout is made to fit on an LCD with additional outputs for the backlight.

Since both the I2C port Expander and the I2C LCD Backpack are pretty much the same, couldn’t I just use the LCD Backpack to connect the Bourns encoder?

But if your project can make due with only 7 I/O pins then you can use the LCD Backpack as an I2C Expander since those other pins are properly connected.

So instead of using 7 Pins on the Arduino, were’s using the I2C protocol and using only 2 Pins to read the Keypad as well as display the results on the LCD screen.

I am trying to use a 16x2 LCD display with the I2C module on the back to display a constant readout of an HC-SR04 ultrasonic sensor. I have the ultrasonic sensor code working fine so it shouldnt be a problem right now but i cannot get the lcd to display properly.

I have followed this youtube tutorial (https://www.youtube.com/watch?v=fR5XhHY ... dex=2&t=0s) and the clock demo runs but displays nothing and the lcd demo displays only random characters.

I have tried attaching an image but i cant get the file size small enough but i have only the lcd connected currently with LCDvcc > RPI+5V LCD gnd > RPIgnd and the SDA and SCL pins connected using single female to female wires. Same as shown in the tutorial.

the lcd has a variable resistor on the back to adjust contrast so its not that either. I can clearly see characters its just that they are a load of nonsense

they were yes i just hastily assembled the circuit to post the first pic of the connections. I fixed it and it was recognised using i2cdetect -y 1 and i still ended up with the nonsense characters with them the right way around.

When I use this type of LCD I normally use the gpio to drive the LCD directly, when ever I have seen a corrupted display like that it normally means there is a bad connection between the pi gpio and the LCD, so may be you have a bad connection between the LCD and the I2C module.

I cannot see any poor connections to the I2C module, it came in a starter kit pre-assembled so it will have been soldered by a machine. Is it possible that it can have a faulty connection and still be recognised using the I2C detect function?

I have have only an ultrasonic sensor plugged in right now but eventually there will be more components. The Ultrasonic sensor is not an I2C component so that should interfere with the timing.

I have decided to just buy another LCD/I2C module since they are cheap while I wait for suggestions/fixes. Just incase it is a faulty LCD - I will report back if this is the case.

Seeing as it"s only the small PCB on the back of the LCD that"s i2c, unless the i2c board does a check of some kind to make sure the LCD is attached and working I don"t see why it would not be possible to have a bad connection or a faulty LCD and the i2c board still be recognised.

Still running Raspbian Jessie or Stretch on some older Pi"s (an A, B1, 2xB2, B+, P2B, 3xP0, P0W, 2xP3A+, P3B, B+, and a A+) but Buster on the P3B+, P4B"s & P400. See: https://www.cpmspectrepi.uk/raspberry_pi/raspiidx.htm

Level-shifters definitely needed for 5V displays esp. if the I2C module is PCF8574-based or, if you can w/o affecting other things, reduce the LCD/module supply to ~4.4V (that ensures that the pi"s 3.3V is seen as a "high" by the PCF8574) see: http://www.cpmspectrepi.uk/raspberry_pi ... iPlus.html

Still running Raspbian Jessie or Stretch on some older Pi"s (an A, B1, 2xB2, B+, P2B, 3xP0, P0W, 2xP3A+, P3B, B+, and a A+) but Buster on the P3B+, P4B"s & P400. See: https://www.cpmspectrepi.uk/raspberry_pi/raspiidx.htm

There"s some code at https://github.com/DougieLawson/Raspber ... nified_LCD which will test one of those backpack displays (using 0x27 for the I²C address). After you"ve built it pcfCG will demonstrate the character generator and pcflcd will show a clock and your IP address.

So I bought a new display but I am having the same issue so it is very unlikely that it was a problem with the board. Is there any chance something like this could happen due to damage to the internals of the RPI but still have it recognise the I2C device using i2cdetect? I am out of my depth here and just grasping at straws.

So I bought a new display but I am having the same issue so it is very unlikely that it was a problem with the board. Is there any chance something like this could happen due to damage to the internals of the RPI but still have it recognise the I2C device using i2cdetect? I am out of my depth here and just grasping at straws.

Whilst I agree that it"s unlikely to be "a problem with the (display) board" I doubt it due to "damage to the internals of the RPI ..." since you have had some characters displayed". I"m not a Python programmer so I can"t comment on Python programs (apart from the default timings as in my previous post). What I can say is I"ve successfully driven a selection of PC8574-based I2C to LCD display modules with, for the 5V devices, level shifters** on the I2C bus or a reduced (5V --> 4.4V) supply, or I2C running at 3.3V for a 3.3V LCD. My code is "C" based, using the wiringpi library and is part**** of my GpioCDemoSoftware: http://www.cpmspectrepi.uk/raspberry_pi ... tware.html There is also an example within wiringpi itself and @DougieLawson has suggested code of his to try.

Still running Raspbian Jessie or Stretch on some older Pi"s (an A, B1, 2xB2, B+, P2B, 3xP0, P0W, 2xP3A+, P3B, B+, and a A+) but Buster on the P3B+, P4B"s & P400. See: https://www.cpmspectrepi.uk/raspberry_pi/raspiidx.htm

LCDs are great for printing data and showing values. Adding an LCD to your project will make it super portable and allow you to integrate up to 32 characters (16x2) of information.

Hello friends welcome back to Techno-E-solution, In previous video we see how to interface LCD 16×2 to Arduino Uno, but there are very complicated circuits, so in this tutorial, I"ll show you how to reduce circuitry by using I2C module which is very compact & easy to connection. Simply connect I2C module with LCD parallel & connect I2C modules 4 pins to Arduino. I2C module has 4 output pins which contains VCC, GND, SDA, SCL where 5V supply gives to I2C module through VCC & GND to GND of Arduino. SDA is a data pin & SCL is clock pin of I2C module. To interface LCD and I2C with Arduino we need Liquid Crystal I2C Library in Arduino IDE software.

To make this project we need Arduino Liquidcrystal library in Arduino IDE. Follow following steps to add this library in Arduino IDE software.Open Arduino IDE Software.

A PCB Design Problems Detector, An Engineering Solution ProviderImport the Gerber file with one click. No need for complicated file reading steps to review easily and improve efficiency.

In previous tutorial, OLED is interfaced with ESP32 using SPI communication which uses 5 pins. In this tutorial, we interface 16x2 LCD with ESP32, using only 2 pins, with the help of I2C communication. It reduces number of pins used by ESP32 so that more number of ESP32 pins remain free for interfacing different sensors.

The term I2C stands for “Inter IntegratedCircuits”. It is normally denoted as IIC or I squared C or even as 2-wire interface protocol (TWI) at some places but it all means the same. I2C is a synchronous communication protocol, means both the devices that are sharing the information must share a common clock signal. It has only two wires, SDA and SCL to share information, out of which SCL is used for the clock signal and SDA is used for sending and receiving data.

I2C controller has an IC PCF8574 which provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus serial clock (SCL) and serial data (SDA). It is very useful IC and can be used in LED signs boards, displays, Key pads, Industrial control, etc. There are 8 I/O pins, 3 pins (A0, A1, A2) for I2C bus address and SDA, SCL pins.

I have connected 3v of ESP32 to 5v of I2C for demonstration only but we need5Vsupply for the I2C module to display data properly, because ESP32 can only give 3.3 volts which is low for the I2C module and data won’t be visible clearly. So, it’s better to use external 5V supply.

We need board files for ESP32, so if you are new to ESP32 then first follow Getting Started with ESP32 Tutorial and then jump back here. You can also connect LCD with ESP32 without I2C but it will take more pins of ESP32.

I2C controller has inbuilt ADDRESS bit which is used to control I2C bus. The default ADDRESS is 0x27 but in some cases it can be 0x3f. So, to check the address of the I2C controller, connect the circuit as shown above upload the below given code and open serial monitor, You will see the address in hexadecimal.

In I2C controller, as you can see there are three jumpers/soldering pads labelled as A0, A1 and A2. These are used to change the address of the module. Here"s how the address changes from the default value 0x27 or 0x3F,  if you connect the address pads together. (1 = Not Connected. 0 = Connected):

The code is written in such way that whatever is typed on serial monitor, will be displayed on LCD. Arduino IDE has been used to write and upload our code.

Insetup function, initialize the serial communication and LCD for 16 chars 2 lines and turn on the backlight. If you want to turn off the backlight use lcd.noBacklight() and changesetCursor()function according to your preference.

loop function will continuous check for any incoming serial data from serial port using Serial.available() function. If there is a message, it wait for second and print the message on the LCD using lcd.write() and Serial.read() functions.

If you don’t get proper or no response on the LCD then check your I2C controller address or scan it again with theabove givencode to get the correct address.

Usually, Arduino LCD display projects will run out of pin resources easily, especially with Arduino Uno. It can also be very complicated with the wire soldering and connections. This I2C 16x2 Arduino LCD Screen is using an I2C communication interface, meaning it only needs 4 pins from your microcontroller for the LCD display to run: VCC, GND, SDA, SCL.

The display comes with a "Gadgeteer" cable which you"ll probably not need as the Gadgeteer wiring system is no longer produced! The display does not come with a dedicated cable for the I2C connection - we just use standard jumper wires instead.