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Witty Pi 4 L3V7 Standalone set up to update

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(@jaykay)
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HI folks....I have a PI 5 and the Witty PI 4 L3V7. The L3V7  will be a standalone. From what I understand 4 wires are only required to "talk" to the L3V7 board to set item #11  to "1" which will always instruct the Witty board that senses 5V at the USB micro to automatically output 5v at P3-1 and P3-6. I need the pin to pin assignment (Witty to PI 5) since as noted its a standalone. I gather the there only needs 4 wires wires totally to update the board and then once updated, the wires will be removed. The 4 wires I believe the wires are : 5V (pin 2), GND (pin 6), SDA (pin 3) and SCL (pin 5). Commands are via the ssh terminal in Windows 11. Also please note the code to down load. Additionally if its found the there is no I2C (ALL DASHES) at the Witty meaning the PI 5 can't see the board what happens next assuming the 4 wires are good connections? I am using the Adafruit 27W power supply. Thanks for your time

 
Posted : 26/08/2026 5:40 pm
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