Thank you - I can't find any 'Vin' pin? I moved the I2C board 'VCC' orange wire from the Pico 3.3 to VBAT as in picture but that did not change the result - still display is lit but no text.
Unfortunately I do not have an Arduiono to test on. I tried an original Espruino board and an ESP32 running Espruino but no luck there either..
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