Using Adafruit Radio+OLED Bonnet with RPi 3b & RPi LCD touch

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Thomas_WJ_Stott
 
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Using Adafruit Radio+OLED Bonnet with RPi 3b & RPi LCD touch

Post by Thomas_WJ_Stott »

Hi there, first time posting!

I've been trying to use the abovementioned radio+OLED bonnet in conjunction with a RPi LCD touchscreen for a ground station type project for model Rocketry. The issue is that using the LCD and bonnet at the same time results in no devices showing up on the RPis I2C bus; however they work individually.

I know the OLED and the LCD use I2C, so is there any way to change the address of the OLED or remove it completely from the bus? I have tried severing the cables so that there is no electrical connection between the OLED and the bonnet, but still no luck.

Many thanks in advance!

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mikeysklar
 
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Re: Using Adafruit Radio+OLED Bonnet with RPi 3b & RPi LCD t

Post by mikeysklar »

which model OLED are you using (adafruit product id# please).

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Thomas_WJ_Stott
 
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Re: Using Adafruit Radio+OLED Bonnet with RPi 3b & RPi LCD t

Post by Thomas_WJ_Stott »

The OLED is included in the Lora hat module (ID 4074).

The breakout for the OLED is ID 931.

Thank you!

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mikeysklar
 
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Re: Using Adafruit Radio+OLED Bonnet with RPi 3b & RPi LCD t

Post by mikeysklar »

Thanks for the OLED links.

There is not an address change option or an elegant way to fully disconnect the 128x32 OLED from the Radio Bonnet. There are SCL / SDA traces which you can locate and cut on the PCB if you really do not want it interfering with the i2c bus.
Screen Shot 2022-06-13 at 12.03.15 PM.png
Screen Shot 2022-06-13 at 12.03.15 PM.png (64.66 KiB) Viewed 101 times
https://learn.adafruit.com/adafruit-rad ... /downloads

Which model of RPi LCD touchscreen are you using?

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Thomas_WJ_Stott
 
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Re: Using Adafruit Radio+OLED Bonnet with RPi 3b & RPi LCD t

Post by Thomas_WJ_Stott »

I shall give that a try, thank you!

The LCD is the Raspberry Pi's own make, found https://thepihut.com/products/official- ... en-display

Many thanks!

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mikeysklar
 
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Re: Using Adafruit Radio+OLED Bonnet with RPi 3b & RPi LCD t

Post by mikeysklar »

The SDA/SCL pins are the 4th and 5th on the OLED counting down from the top. You might want to also disable to the Vcc which is the first (top most).
oled-i2c-pins.png
oled-i2c-pins.png (482.81 KiB) Viewed 86 times

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