10-21-2026, 12:11 AM
Thank you, that helps. The ESP32 MOSFET board (B8M) looks like the right fit for me. A few quick questions about it:
1. It uses the ESP32-S3-WROOM-1U. Does it come with an external antenna, or which antenna and cable should I buy?
2. What's its idle current at 12 V with Wi-Fi on?
3. At power-up, are all MOSFET outputs OFF until the firmware turns them on?
4. My lock is a reversing motor, not a solenoid, so I'll use one MOSFET output to switch a 12 V reversing relay. Is a MOSFET output fine for a relay coil, and does the board have flyback protection on its outputs?
5. The B8M shows sold out. When will it be back in stock, and what's the price with shipping to Leeds, UK?
6. Do you have a module that switches automatically between mains 12 V and battery 12 V?
Thanks again,
K
1. It uses the ESP32-S3-WROOM-1U. Does it come with an external antenna, or which antenna and cable should I buy?
2. What's its idle current at 12 V with Wi-Fi on?
3. At power-up, are all MOSFET outputs OFF until the firmware turns them on?
4. My lock is a reversing motor, not a solenoid, so I'll use one MOSFET output to switch a 12 V reversing relay. Is a MOSFET output fine for a relay coil, and does the board have flyback protection on its outputs?
5. The B8M shows sold out. When will it be back in stock, and what's the price with shipping to Leeds, UK?
6. Do you have a module that switches automatically between mains 12 V and battery 12 V?
Thanks again,
K