Hello,
I have been learning to use easyEDA to create a schematic which comprises of one Adafruit Metro Mini 328 (Arduino nano clone I think).
Also, I2C connections for an Adafruit 128x64 monochrome I2C OLED and two Adafruit MPR121 captouch boards--they share the same SDA(A4) and SCL(A5) pins.
There is also a connection for one 74HC4067 analog multilplexer breakout board similar to one sold by SparkFun. Which uses 4 digital pins of the Arduino. Audio output on pin D11, with a simple resistor/capacitor filter for output. H1, H2, H3 are just breaking out some of the Arduino's pins.
Just wondering if anyone can find any problems. Sincere thanks for any help on this.
TonyAm
I have been learning to use easyEDA to create a schematic which comprises of one Adafruit Metro Mini 328 (Arduino nano clone I think).
Also, I2C connections for an Adafruit 128x64 monochrome I2C OLED and two Adafruit MPR121 captouch boards--they share the same SDA(A4) and SCL(A5) pins.
There is also a connection for one 74HC4067 analog multilplexer breakout board similar to one sold by SparkFun. Which uses 4 digital pins of the Arduino. Audio output on pin D11, with a simple resistor/capacitor filter for output. H1, H2, H3 are just breaking out some of the Arduino's pins.
Just wondering if anyone can find any problems. Sincere thanks for any help on this.
TonyAm