Hi there, everything is about which relay module you have. ESP-01 relay V1.0 there you have to do to changes first wire connect VCC pin and CH_PD pin picture1 step two is take out R2 picture 2.
ESP-01 relay V4.0 only first step connect VCC and CH_PD.
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- 11 Jan 2020, 17:14
- Forum: ESP Easy: Hardware
- Topic: No connection ESP01 and Relay
- Replies: 51
- Views: 57332