There are easy ways of getting more I/O pins for any project; shift registers, I2C expanders, or ADCs will give you plenty of pins for whatever project you have in mind. All these require extra com… ...

Arduino has shrunk the UNO R4 with the Arduino Nano R4 board equipped with the same 48 MHz Renesas RA4M1 32-bit Arm ...

Hello, I am using Arduino IDE 2.1.1 on Windows. I have no issues writing to my ssd1306 screen on esp-wroom-32 devboard with the defauld SDA(21) and SCl(22). However, I also want to use the screen on ...

Some Arduino Uno models have separate SDA and SCL pins and you can use them instead of the two analog pins if you wish. On a side note, I incidentally noted that MCP9808 is available in two address ...

Expansion Arduino Nano headers (2x 15-pin headers) Up to 22x GPIOS configurable as PWM pins 4x analog input pins up to 3.3V 2x UART, 1x I2C, 1x SPI Audio – I2S support via Raspberry Pi PIO Vin, 5V, ...

Arduino Maker Nano RP2040 “Slightly shorter than a Pico, this board has 30 pre-soldered pins, all helpfully labelled on the silkscreen.