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Early in your .ino file you should define constants for the I/O pins that connect to the display controller. The ILI9341 controller requires three pins. Here is an example with the pins defined for my particular system (a Nano 33 IoT processor in an MKR A-Z Touch case with ILI9341 dis...
Pins are arbitrary, but should be defined as inputs with pullups. Pushbuttons are connected between Gnd and the relevant pin. The constructor takes the following positional args: objssd The SSD instance. A reference to the display driver. nxt A Pin instance for the next button. sel A Pin...
Step 3: Building a Demo Prototype For demonstration purposes you can prototype it on a solderless breadboard as shown but I've also given you the schematic so you can work out your own layout using stripboard or a custom PCB, perhaps part of a wider project. Step 4: Programming the ATTin...
It’s based on the ESP-01S, a smaller ESP8266 board with only two GPIO pins. When pressed, it sends a custom command to the Pi-Hole to disable the ad blocking. A battery inside the case allows it to be placed conveniently anywhere near anyone who might need it. With this button ...
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and QSOP-24 packages. I’m going to use the QSOP-24 because it’s easier for me to hand solder leaded packages than leadless packages. If your application outgrows the EFM8UB1, Silicon Labs has a migration path to the EFM8UB2 for applications needing more pins and memory or the EFM8UB...
The touchscreen requires two signals from the microcomputer to access it, and these must be defined, usually near the top of your .ino file: // Touchscreen pin definitions. #define TOUCH_CS_PIN A0 #define TOUCH_IRQ_PIN A7 The above are examples, change the values to match the pins con...
core.ugui import Display, quiet # quiet() # Define control pins - no pullups. nxt = Pin(13) # Move to next control sel = Pin(14) # Operate current control prev = Pin(15) # Move to previous control increase = Pin(33) # Increase control's value decrease = Pin(32) # Decrease ...
The touchscreen requires two signals from the microcomputer to access it, and these must be defined, usually near the top of your .ino file:// Touchscreen pin definitions. #define TOUCH_CS_PIN A0 #define TOUCH_IRQ_PIN A7 The above are examples, change the values to match the pins ...