Hardware Update Logs

V1

• First release
• 2017-6-1 public sale
• Pinout diagram of V1
• Schematic diagram of V1
• The schematic diagram of Wireless Stick Lite is restricted technical data,it will become downloadable after purchase.Please read this document: Get Limited Technical Resources.

V3

• 2022-09-15 public sale

• MCU is changed from ESP32-PICO-V3 to ESP32-S3FN8. Specific differences of MCU are shown in：https://products.espressif.com/#/product-comparison.

• USB interface changed from Micro USB to Type-C.

• LoRa chip changed from SX1276 to SX1262.

• The LoRa crystal oscillator is upgraded to temperature compensated crystal oscillator.

• The size, appearance, pin layout and power pins remain unchanged, but the GPIO sequence has changed. Please refer to Pinout diagram.

• Pinout diagram of V3.

• Schematic diagram of V3.

• https://resource.heltec.cn/download/HT-CT62/HT-CT62.png