Heltec Wireless Stick Lite Development Board
Code name: heltec_wireless_stick_LITE
Heltec Wireless Stick Lite development board is based on esp32 microcontroller and uses xtensa architecture. This board has a maximum CPU frequency of 240 MHz and a flash size of 4MB.
About Heltec Wireless Stick Lite
Lighter version of Wireless Stick with minimal footprint - ideal for ultra-low-power remote sensors.
Heltec Wireless Stick Lite Technical Specifications
🛰️ Connectivity
🧠 Microcontroller
✨ Features
- 40 digital IO pins
- 16 external interrupt pins
- 16 analog input pins
- 18 PWM pins
Heltec Wireless Stick Lite Pinout
Heltec Wireless Stick Lite Pins Mapping Arduino IDE
Below you can find the Heltec Wireless Stick Lite pinout. This development board provides 40 digital IO pins, out of which 16 can be used as external interrupt pins, 16 as analog input pins and 18 pins have Pulse-Width Modulation (PWM).
| Pin | Analog | Touch | PWM | Other |
|---|---|---|---|---|
| 0 | A11 | T1 | KEY_BUILTIN | |
| 1 | PWM | TX | ||
| 2 | A12 | T2 | PWM | |
| 3 | PWM | RX | ||
| 4 | A10 | T0 | PWM | |
| 5 | PWM | SCK | ||
| 12 | A15 | T5 | PWM | |
| 13 | A14 | T4 | PWM | |
| 14 | A16 | T6 | PWM | RST_LoRa |
| 15 | A13 | T3 | PWM | |
| 18 | PWM | SS | ||
| 19 | PWM | MISO | ||
| 21 | PWM | SDA Vext | ||
| 22 | PWM | SCL | ||
| 25 | A18 | PWM | LED_BUILTIN DAC1 LED | |
| 26 | A19 | PWM | DAC2 DIO0 | |
| 27 | A17 | T7 | PWM | MOSI |
| 32 | A4 | T9 | PWM | |
| 33 | A5 | T8 | PWM | |
| 34 | A6 | DIO2 | ||
| 35 | A7 | DIO1 | ||
| 36 | A0 | |||
| 39 | A3 |
Default Tools for Heltec Wireless Stick Lite
| Bootloader tool | esptool_py |
| Uploader tool | esptool_py |
| Network uploader tool | esp_ota |
| Bootloader address | 0x1000 |
| Flash mode | dio |
| Boot mode | dio |
| Maximum upload size | 1280 Kb (1310720 B) |
| Maximum data size | 320 Kb (327680 B) |
The Heltec Wireless Stick Lite development board by default uses esptool_py uploader tool, esp_ota network uploader tool for Over-the-air (OTA) uploads and esptool_py bootloader tool. The bootloader starts at address "0x1000". Flash mode and boot mode for Heltec Wireless Stick Lite development board by default is dio and dio respectively.
