Ewelink RF No Neutral 3 Channel module
Ewelink RF No Neutral 3 Channel

Available from:

Install method:
USB to Serial

GPIO #Component
GPIO00 Button 1
GPIO01 None
GPIO02 None
GPIO03 None
GPIO04 Relay 2
GPIO05 Relay 3
GPIO09 Button 2
GPIO10 Button 3
GPIO12 Relay 1
GPIO13 LedLink
GPIO14 None
GPIO15 None
GPIO16 None
GPIO17 None
{"NAME":"Ewelink 3 Gang Module","GPIO":[32,0,0,0,225,226,33,34,224,544,0,0,0,0],"FLAG":0,"BASE":18}

Because of narrow space on the pcb, i did not solder any wires but rather using nano probes that i printed earlier from this link https://www.thingiverse.com/thing:3615910

You may also opt to just use a jig for psf-b04 https://www.thingiverse.com/thing:4841261