ESP Hardware

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This is a (not yet complete) list of Hardware which is known to be supported:

Device Name ESP Chip Flash Size USB-TTL GPIOs available
(red=not recommended use due to possible problems)
GPIO connected to onboard Hardware onboard PSU/voltage regulator Input voltage Antenna Size (LxWxH)
12 E/F 4MB CH340 0, 1, 2, 3, 4, 5, 9, 12, 13, 14, 15, 16, A0 (with Voltage divider) 1&3 (serial) RT9013 5 VDC (+/-0,5V) onboard PCB 34.2mm x 25.6mm x ?mm
12 E/F 16MB CP2104 0, 1, 2, 3, 4, 5, 9, 12, 13, 14, 15, 16, A0 (with Voltage divider) 1&3 (serial) RT9013 5 VDC (+/-0,5V) onboard ceramic/pigtail connector 34.2mm x 25.6mm x ?mm
WeMos D1 R2

Wemos d1 r2.jpg

12 E/F 4MB CP340G 0, 1, 2, 3, 4, 5, 9, 12, 13, 14, 15, 16, A0 (with Voltage divider) 1&3 (serial) 9-24VDC Switching power supply to 5 VDC(@1A) and RT9013 9-24VDC (power jack), 5VDC (5V pin) onboard PCB 68.6mm x 53.4mm x ?mm (=Arduino UNO)
12 E 4MB CP2102 0, 1, 2, 3, 4, 5, 9, 12, 13, 14, 15, 16, A0 (with Voltage divider) 1&3 (serial)  ? 5 VDC (+/-0,5V) onboard PCB  ?mm x ?mm x ?mm
12 E 4MB CP340 0, 1, 2, 3, 4, 5, 9, 12, 13, 14, 15, 16, A0 (with Voltage divider) 1&3 (serial)  ? 5 VDC (+/-0,5V) onboard PCB  ?mm x ?mm x ?mm
generic ESP8266 1MB None 1, 3, (14) 0 (button), 12 (Relay 10A@230VAC), 13 (LED) on board mains AC to 5DVC + ? 3.3V Voltage Regulator
Attention! The DC power is NOT galvanically decoupled from AC power!
90-250VAC onboard PCB 88mm x 38mm x 23mm
Sonoff TH10/TH16

Sonoff th.jpg

generic ESP8266 1MB None 1, 3, (14) 0 (button), 12 (Relay 10A/16A@230VAC), 13 (LED), 14 (AM2301) on board mains AC to 5DVC + ? 3.3V Voltage Regulator
Attention! The DC power is NOT galvanically decoupled from AC power!
90-250VAC onboard PCB 88mm x 38mm x 23mm
Sonoff S20

Sonoff S20.jpg

generic ESP8266 1MB None 1, 3, (14) 0 (button), 12 (Relay 10A@230VAC), 13 (LED) on board mains AC to 5DVC + ? 3.3V Voltage Regulator 90-250VAC onboard PCB  ?
Sonoff 4ch

Sonoff-4ch.jpg

generic ESP8285 1MB None 2, (7, 8) 0, 9, 10, 14 (Buttons), 4 , 5, 12, 15 (Relay 10A@230VAC), 13 (LED blue) on board mains AC to 5DVC buck converter + 3.3V Voltage Regulator 90-250VAC onboard PCB 145mm x 90mm x 41mm
generic ESP8285 1MB None - 0 (button), 12 (Relay 2A@230VAC), 13 (LED blue) on board mains AC to 5DVC buck converter + 3.3V Voltage Regulator 90-250VAC onboard PCB 86mm x 86mm x 37mm (EU)
120mm x 78mm x 41mm (US)
Ai-Thinker A20 Breakout

Ai-thinker a20.jpg

generic ESP8285 1MB None  ?  ?  ?  ? SMA Connector  ?