Wemos, the Chinese manufacturer developing and marketing the Wemos d1 mini and its shields has just launched the LoLin32, its first card based on the Espressif ESP32. The LoLin32 features an ESP-wroom-32 module, 4MB flash memory, a micro USB connector for programming and a LiPo battery connector.
Specifications of the Wemos LoLin32
- ESP32 Module: ESP-WROOM-32 from Espressif. Dual core @ 240 MHz microprocessor equipped with 4MB of flash memory
- WiFi 802.11 b/g/n
- Bluetooth 4.0 LE
- 26x Digital I/O (3.3V)
- 12x analog inputs
- UART, I2C, SPI, VP / VN, DAC
- Compatible Breadboard
- USB: 1x micro USB port for powering and programming / debugging
- 5V via micro USB port
- Connector for external LiPo battery (charging current: 500mA max).
- Weight: 5.8 grams
The Wemos LoLin32 is a more traditional development card than the Wemos d1 mini. With the LoLin32, Wemos abandons (for now?) His concept of shields to stack. The Shields of the d1 mini are not compatible. It returns to a format of development card for more traditional connected objects. Compared to the competition, the LoLin32 stands out however slightly by proposing a connector for LiPo battery. There is still no technical information but it seems possible to charge the battery from the micro USB port. The connector is not specified but it looks identical to that of the shield battery (presentation), connector JST XH2-2.54mm. The dedicated page of the Wiki is under construction.
A very important point, the LoLin32 is narrower than the competing boards. It leaves free a row of connector on each side on the breadboard
The Wemos LiLo32 is available now on the official Wemos shop for €6.45 + shipping (€8.10 in my case).