I need to run this bonnet without plugging it into the RPi gpio pins.
So I need to know which pins on the 40 pin connector are being used.
Help appreciated.
Randy
Adafruit 2.23" Monochrome OLED Bonnet for Raspberry Pi
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- RandyBryant3757
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- mikeysklar
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Re: Adafruit 2.23" Monochrome OLED Bonnet for Raspberry Pi
Randy,
You will also need to provide power and GND in addition to the three pins above. You can confirm pin usage also with the provided schematic / pcb files.
https://github.com/adafruit/Adafruit-2. ... Bonnet-PCB
https://learn.adafruit.com/adafruit-2-2 ... t/overviewThe OLED the I2C pins plus GPIO #4 for reset
You will also need to provide power and GND in addition to the three pins above. You can confirm pin usage also with the provided schematic / pcb files.
https://github.com/adafruit/Adafruit-2. ... Bonnet-PCB
- RandyBryant3757
- Posts: 12
- Joined: Sat Aug 27, 2022 4:42 pm
Re: Adafruit 2.23" Monochrome OLED Bonnet for Raspberry Pi
Thanks mikeysklar! I finally figured it out on my own. When does the reset pin get used? I get garbage on the display when initializing with a c++ library I found after a reboot. Using CircuitPython I don't get the garbage. Not a big deal, but would like to understand. The c library is SSD1305_OLED_RPI.
- mikeysklar
- Posts: 14194
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Adafruit 2.23" Monochrome OLED Bonnet for Raspberry Pi
Looking at the CircuitPython_SSD1305 it looks like reset is used during initialization or when manually calling poweron.
https://github.com/adafruit/Adafruit_Ci ... ssd1305.py
https://github.com/adafruit/Adafruit_Ci ... ssd1305.py
Please be positive and constructive with your questions and comments.