16-Channel Relay Module for ESP32 IoT Development Board 5V
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Prices updated: 12 Oct 2026
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About this product
A 16-channel relay board designed to be driven directly by an ESP32 for switching loads in IoT, home automation and PLC-style control projects. Each relay has an LED indicator that shows its output state, and optocoupler isolation protects the controller from the switched side.
Specifications
- Number of channels
- 16
- Control signal voltage
- 5V
- Load rating
- AC 250V/10A, AC 125V/15A, DC 30V 10A
- Isolation
- Optically isolated (optocoupler)
- Status indication
- LED indicator per relay
- Dimensions
- 166 mm x 134 mm
Frequently asked questions
Can the relay board be controlled directly from ESP32 GPIO pins?
The listing states that the board has a standard interface that ESP32 can control directly. The control signal is 5V, so check the input-level requirement and power the board from a suitable 5V supply before wiring.
What loads can each relay switch?
According to the listing, the relays are rated for AC 250V/10A, AC 125V/15A and DC 30V 10A. Keep your load within these ratings to avoid damaging the relay contacts.
