LOLIN D32 pro ESP32 Board - 16MB FLASH - 8MB PSRAM

The Lolin D32 is the successor to the popular LOLIN32 pro. Thanks to the large 16MB flash memory and 8MB PSRAM, it is perfect for programming with MicroPython. Compared to the Lolin32, several improvements have been made, such as reduced power consumption in deep sleep mode. The successor to the ESP8266 also includes WiFi, Bluetooth and Bluetooth LE, as well as more IO pins and improved analog inputs. The ESP32 can be programmed under Arduino, but the board must first be integrated. I recommend the ESP32 only for advanced users, as it is not yet supported by all Arduino libraries. In addition to the WiFi / BLE SoC, the Lolin32 board includes a CH340, which converts USB to serial, allowing your computer to communicate with the microcontroller. The LOLIN32 also has a LiPo charger with a connector for 3.7V LiPo’s, so you can realize your ESP32 project battery-powered and truly wireless. Thanks to its small form factor, the LOLIN32 can be plugged directly onto a breadboard and a jumper cable can be plugged on both sides.

Improvements Lolin D32 pro Vs. Lolin32 pro: 

• The board mounts an official Espressif ESP32-WROVER module 
• Latest ESP32 version: REV1 
• 4M bytes flash memory 
• Lithium battery interface, 500mA maximum charging current 
• Compatible with Arduino, MicroPython 
• Standard firmware: latest MicroPython 
• Lipo voltage can be measured via voltage divider (Analog Input GPIO35) 
• Improved mounting holes 
• Lolin I2C port (pluggable) 
• LOLIN TFT port (pluggable) 
• MicroSD Card Slot on the board 
• Very low power consumption in DeepSleep of only approx. 0.07mA (improved by 50% compared to the Lolin32 with 0.15mA)

Reading Lipo Voltage:

With the following function you can easily read the Lipo batteries voltage from the Lolin D32: 

Float ReadBatteryVoltage(){ 
Return analogRead(35)/4096.0*7.445; 
} 

USB-UART CH340 Driver

Windows: ch341ser_win.zip
Mac OSX: ch341ser_mac-1.4.zip

Layout Lolin D32:

• Lolin D32 pro layout

Pinout Lolin D32:

Technical Details: 

• Dual-core Tensilica LX6 microprocessor 
• USB-UART chip: CH340 
• USB port: Mico USB 
• MicroSD Card Slot on the board 
• Up to 240MHz clock frequency 
• 520kB internal SRAM 
• Integrated 802.11 BGN WiFi transceiver 
• Integrated dual-mode Bluetooth (BLE and Classic) 
• Operating voltage I/O: 3.3V 
• Digital I/O pins: 22 
• Analog input pins: 6 (VP, VN, 32, 33, 34, 35) 
• Analog output pins: 2 (25, 26) 
• Flash: 16M bytes 
• PSRAM: 8M bytes  
• Integrated LiPo battery charger for 3.7V Lipos with max 500mA charging current 
• Lipo battery connector: PH-2 2.0mm 
• LED_BUILTIN: 5 
• DeepSleep current: approx. 0.07mA 
• Dimensions: 65 x 25.4 x 7mm 
• Weight: 8g

Package Contents: 

• 1x LOLIN D32 pro ESP32 Board - 16MB FLASH - 8MB PSRAM
• 2x 16Pin header