ESP32 Lolin32 Lite

ESP32 Lolin32 Lite buatan WEMOS

Fitur utama dari Lolin32 Lite adalah sebagai berikut

• WiFi
• bluetooth
• 4MB Flash
• Lithium battery interface, 500mA Max charging current

Komponen utama pada Lolin32 Lite adalah sebagai berikut:

• ESP32-D0WDQ6  (prosesor Espressif ESP32)(https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf)
  “ESP32-D0WDQ6, Dual core, No embedded flash, Wi-Fi b/g/n + BT/BLE Dual Mode, QFN 6*6”
• W25Q32FVSS (3V 32M-bit Serial Flash Memory With Dual/Quad SPI & QPI) https://www.winbond.com/resource-files/w25q32fv%20revi%2010202015.pdf
• UMH3N (General purpose dual digital transistor) http://rohmfs.rohm.com/en/products/databook/datasheet/discrete/transistor/digital/emh3t2r-e.pdf
  https://www.mouser.com/ds/2/348/umh3ntn-e-1018108.pdf
• CH340C (USB to serial chip) https://www.mpja.com/download/35227cpdata.pdf
• ME6211 (High speed LDO regulators) https://datasheet.lcsc.com/szlcsc/Nanjing-Micro-One-Elec-ME6211C33M5G-N_C82942.pdf
• TP4054 (TP4054 Standalone Linear Li-lon Battery Charger with Thermal Regulation in SOT)
  https://www.piekarz.pl/pl/pdf.php?id=30089 (English)
  https://datasheet.lcsc.com/szlcsc/Nanjing-Extension-Microelectronics-TP4054_C32574.pdf (Chinese)
• LED onboard di pin 22 (GPIO22), active low, melalui resistor 2k

Untuk menjalankan FreeRTOS pada ESP32, ada 2 alternatif:

• ESP-IDF (Espressif IoT Development Framework) https://github.com/espressif/esp-idf . Pedoman instalasi ESP-IDF dapat diikuti di artikel “Get Started“
  
• Arduino ESP32 https://github.com/espressif/arduino-esp32

Resource

• Website resmi Lolin32 Lite: https://wiki.wemos.cc/products:lolin32:lolin32_lite
• Skematik (PDF) https://wiki.wemos.cc/_media/products:lolin32:sch_lolin32_lite_v1.0.0.pdf
• Driver CH340 (Windows) https://wiki.wemos.cc/_media/file:ch341ser_win.zip
• Driver CH340 (MacOSX)  https://wiki.wemos.cc/_media/ch341ser_mac-1.4.zip