I received two WiFi modules today from ElectroDragon.com. These are the newly found and very cheap boards discussed on HackaDay.io. I thought they might work better than the NRF24L01+ modules I’ve been testing for my IoT RaspiBadger side project. Here’s my initial notes to get started:
I’m using the Arduino UNO with this module. The 3.3v/Gnd/Rx/Tx pins of the WiFi Module are directly attached to the same pins on the UNO. I believe I have the Revision 1 (using cmd AT+GMR gives 01000800), the Rev 2 has additional IO pins as well as a reset and ?Enable? pin. Rev 2 will likely not work the way I will describe below for the Rev 1. I tried connecting the WiFi to a pair of AAA batteries at 2.95V and I didn’t get consistent results. I’ll have to explore this further as my end goal is to run this off batteries.