Users Manual

®
成都惠利特自动化科技有限公司
www.heltec.cn
Wireless Stick
V1.0
P 3 / 9
Dec. 2018
HelTec Automation © Limited standard files
processor
 Espressif ESP32 chipset
 Dual processor WiFi radio System on chip
 Network processor handles the WiFi
connectivity and the IPv6 stack
 32 Bit Dual-core、240MHz Main Frequency
 Integrating WiFi and Bluetooth
 The main processor is completely free to run
the user application
 An additional ULP coprocessor that monitors
GPIOs, ADC channels, and controls most
internal peripherals
LoRa
 Semtech SX1276 chipset
 For different regions, LoRa offers the following
options (Reference only, subject to national
laws and regulations)：
- 433MHz：Europe, max 10dB output
- 470 ~510MHz：China, Max 20dB Output
- 868MHz：Europe, max 14dB output
- 915MHz：North America, South America,
Australia and New Zealand, with a maxi
output of 20dB output
 It can be either a LoRa node or a micro gateway.
 Work with Heltec ESP32-LoRaWAN Arduino
library.
 Transmission distance: 6 Km in open area
 Output power: up to + 20dBm (+2dBm)
WiFi
 802.1b/g/n 16mbps
Bluetooth
 Low energy Bluetooth(BLE)
 Classic bluetooth
Human–Computer Interaction
 0.49 inch 64*32 resolution OLED screen
 Press buttons (reset and program)
Power Supply
 Input power: USB, lithium battery
 Output power: +5V (only when powered by
USB), +3.3V
 Integrated Lithium Battery Charging Circuit
 External power supply controlled by IO port
facilitates development board access to low
power consumption
Interface
 2 x UART、2 x SPI、2 x I2C、I2S
 Analog channels: 8_12 bit ADCs
 Timers: 4_16 bit with PWM and input capture
 DMA on all peripherals
 24 GPIO
 5 input port
storage
 RAM：4MB
 External FLASH: 64M-Bit
Power waste
 Deep dormancy：800uA
 WiFi scanning：115mA
 WiFi AP：135mA
 LoRa 10dB output：50mA
 LoRa 12dB output：65mA
 LoRa 15dB output：110mA
 LoRa 20dB output：130mA
Mechanical structure
 size：60mm x 23mm x 8mm (see appendix)