Review on DIYmall ESP8266 ESP-01 Breakout Board ESP-01S Breadboard Adapter PCB Board Pack of 5pcs - Serial WiFi Transceiver Module by Jimmy Hargrove

Name: DIYmall ESP8266 ESP-01 Breakout Board ESP-01S Breadboard Adapter PCB Board Pack of 5pcs - Serial WiFi Transceiver Module
Item: DIYmall ESP8266 ESP-01 Breakout Board ESP-01S Breadboard Adapter PCB Board Pack of 5pcs - Serial WiFi Transceiver Module
Rating: 3

November 02, 2022

I liked this little board

I liked this little board. There is no line level conversion (TTL voltage level shifting) so you still need a voltage divider circuit or TTL voltage shifting IC that you connect to the Arduino's 5V. They put a good diode in there in case you hook the board upside down. But there's also an arrow next to the connector that shows where the long side of the ESP-01 goes.

Pros