Astro Gaming
Astro Gaming 2 in 1 Accessory ESP32-WROOM-32E 4-Channel Relay WiFi 4
ESP32 development board with four 5 V relays and WiFi 4 for AC or DC powered smart-home control
- Programmable ESP32 board with 4M Byte Flash for custom IoT projects
- Four 5V relays switch loads up to AC250V or DC30V
- Built-in AC-DC power module accepts 90-250V AC or 7-30V DC
- All I/O and UART ports exposed for easy secondary development
- Supports Arduino IDE and Eclipse with reference code for rapid prototyping
ESP32-WROOM-32E Development Board
This ESP32-WROOM-32E development board integrates a four-channel 5V relay module with an onboard AC-DC power supply. It targets makers and engineers building smart-home automation or wireless control prototypes. The board exposes all I/O ports and a UART download interface for straightforward secondary development using Arduino IDE or Eclipse.
Upgrade from Bare Modules
The board replaces a loose ESP32 module plus separate relay and power boards, consolidating AC 90-250V or DC 7-30V input, four relays, and a reset button onto one PCB. The jump is worth it when you need a single, programmable unit that can switch mains-level loads without wiring multiple discrete components together.
Four-Channel Relay Capacity
Each relay handles switching loads up to AC 250V or DC 30V, providing four independent channels for lighting, appliances, or sensors. Headroom is sufficient for typical residential automation circuits; the design runs out when a project demands more than four switched circuits or requires isolated low-voltage signal switching beyond the provided contacts.
Highlights
- Programmable ESP32 board with 4M Byte Flash for custom IoT projects
- Four 5V relays switch loads up to AC250V or DC30V
- Built-in AC-DC power module accepts 90-250V AC or 7-30V DC
- All I/O and UART ports exposed for easy secondary development
- Supports Arduino IDE and Eclipse with reference code for rapid prototyping
Specifications
No published specifications for this item yet.
Questions about this item
What voltage ranges can the onboard AC-DC power module accept?
The board accepts AC 90-250 V or DC 7-30 V through its integrated switching power supply.
How do I put the ESP32-WROOM-32E into download mode for programming?
Connect IO0 to GND before powering the board, then disconnect IO0 from GND after the upload finishes.
What are the contact ratings for each of the four 5 V relays?
Each relay can switch loads up to AC 250 V or DC 30 V using its normally open and normally closed contacts.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
