Would it be safe to plug the Ultimate GPS Logger Shield on top of a Wemos D1 R2 (a 3.3V esp8266 board with Arduino Uno footprint)?
The schematic of the shield seems to suggest 5V logic level on RX, but if I read the datasheet of the PA6H module correctly, it is VCC of the chip, which (I suppose) would be 3.3V.
Ultimate GPS Logger Shield + Wemos D1 R2
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- perlix
- Posts: 3
- Joined: Fri May 18, 2018 3:52 am
Re: Ultimate GPS Logger Shield + Wemos D1 R2
Think I found the answer by connecting RX to an analog input pin. The Serial Plotter shows readings that never exceed 3.3V, so I guess it's safe to plug the shield on top of a Wemos D1 R2. Nice, because based on current GPS position, I can now download an appropriate map and show it on a TFT display.
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