Wemos D1 connected to Arduino Uno
Posted: Sun Jan 28, 2018 8:22 pmIs it possible to connect a Wemos D1 to an Arduino board?
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Wemos D1 connected to Arduino Uno
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Posted: Sun Jan 28, 2018 8:22 pmRe: Wemos D1 connected to Arduino Uno
Posted: Sun Jan 28, 2018 9:26 pmTechnically yes, but there are concerns that should be taken care of. The ESP8266 is a 3.3 volt device and the logic levels for RX and TX should be kept to within those levels. Because the D1 board has a USB to serial converter chip connected to the Rx and Tx pins (through a 470 Ohm series resistor) that limits the kind of level converters that you can use in order to keep within the 3.3 volt level.