ESP32 Relay Optoisolator Setup
2:54
Addressing schematic connections.
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Planning schematic connections.
Table
| Net | Connections |
|---|---|
| NET_IN | R1:1 (LED anodo), PC817X3NIP2B:1 (LED anodo) |
| NET_IN | R1:2 (LED catodo), PC817X3NIP2B:2 (LED catodo) |
| NET_OUT | PC817X3NIP2B:4 (transistor emettitore), Ground:1 |
| NET_OUT | PC817X3NIP2B:3 (transistor collettore), R2:1 (pull-up), U1:GPIOxx (ESP32 input) |
| RELAY_IN | U1:GPIOyy (ESP32 output), R2:2 (resistenza base), Q2:1 (base) |
| RELAY_IN | Q2:2 (emettitore), Ground:1 |
| RELAY_COIL | Q2:3 (collettore), K1:COM (contatto comune relè) |
| RELAY_COIL | K1:NO (contatto normalmente aperto relè), 5V:1 |
| RELAY_FB | K1:COIL1 (bobina relè), D1:1 (anodo 1N4007) |
| RELAY_FB | K1:COIL2 (bobina relè), D1:2 (catodo 1N4007) |
| LED_STAT | U1:GPIOzz (ESP32 output), D2:1 (anodo LED THT) |
| LED_STAT | D2:2 (catodo LED THT), R1:1 (220 Ω 0603 Resistor) |
made updates
1:55
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Reviews
Designator | MPN | |
|---|---|---|
None |
Inspect
Zoophagous Green Liquid Breathing Apparatus
Controls
Properties
Availability & Pricing
| Distributor | Qty 1 | |
|---|---|---|
| Arrow | $3.87–$6.50 | |
| Digi-Key | $2.51–$6.98 | |
| LCSC | $4.70–$5.76 | |
| Mouser | $5.60–$8.79 | |
| TME | $0.13–$1.22 | |
| Verical | $0.04–$9.43 | |
Assets
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