DFRobot Bluno Beetle Shield - DFR0356 wrl-15126 Feature ESP-01S (this product) ESP-01

Feature ESP-01S (this product) ESP-01 (512 KB) Flash memory 1 MB — room for MicroPython

NFC technology expands upon high-frequency RFID technology already in use and is frequently utilized in proximity access control solutions

PCF8563 RTC Board

The fact that it already supports FTDI drivers makes it effective

1) and Xbee modules

DFRobot Bluno Beetle Shield - DFR0356 wrl-15126 Feature ESP-01S (this product) ESP-01The Bluno Beetle Shield expands the Beetle's single analog and digital I O pins to the 3 pin "gravity" interface, giving more power and ground connections and making it easier to attach gravity interface modules. It also includes a convenient external power supply and a 5 8v switch to power the board on and off. To use the shield, the Bluno Beetle is stacked on to the shield's I O pins and then soldered in place. Digital I O Pins x4: D2 D5 Analog