A
Anonymous
Apr 07, 2026
Rating: 5/5
Excellent for IoT projects
Works great with Home Assistant. Stable connection and easy to flash.
Description
ESP8266 Serial WiFi Transceiver Wireless Module Development Board ESP-01 ESP-01S ESP8285
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Core Processor | ESP8266EX |
| Flash Memory | 1MB (8Mbit) |
| Wi-Fi Standard | IEEE 802.11 b/g/n |
| Operating Voltage | 3.3V DC |
| Logic Level | 3.3V TTL |
| GPIO Count | 2 (GPIO0, GPIO2) |
| Communication Interface | UART / TTL |
| Frequency Range | 2.4GHz - 2.5GHz |
| Board Size | 24.5 x 14.5 mm |
| Current Consumption | 80mA (Transmit) |
5 reviews
A
Anonymous
Feb 20, 2026
Rating: 3/5
Hard for beginners
Hardware is fine but requires external USB converter to program.
A
Anonymous
Feb 20, 2026
Rating: 4/5
Good value but mind the voltage
Cheap and effective. Just remember not to feed it 5V directly.
A
Anonymous
Feb 12, 2026
Rating: 5/5
Compact and reliable
Using these for temperature sensors around the house. No dropouts so far.
A
Anonymous
Feb 06, 2026
Rating: 5/5
Fast delivery and works
Arrived quickly. Tested with Arduino IDE immediately without issues.
5 FAQ
Q: Can I power this from Arduino 5V pin?
A: No, please use 3.3V. The 5V pin on Arduino may damage the module.
Q: Do I need a USB to TTL converter?
A: Yes, you need a USB to TTL adapter to program the module via UART.
Q: What is the Wi-Fi range?
A: Indoor range is approximately 30 meters depending on obstacles.
Q: Is Arduino IDE supported?
A: Yes, you can install the ESP8266 board manager package in Arduino IDE.
Q: How much flash memory is available?
A: This module comes with 1MB of flash memory for user programs.
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