Wireless Stick (V3)
Board
Specifications
Radiosinherited from ESP32-S3
- Wi-Fi
- Wi-Fi 4 · 2.4 GHz
- Bluetooth LE
- BLE 5
- Bluetooth Classic
- no
- 802.15.4
- no
USB
- Native USB
- yes
- Connector
- usb-c
- Bridge chip
- cp2102
Board
- Form factor
- heltec
- Dimensions
- 58.08 × 22.6 × 8.2 mm
- Battery connector
- yes
- Charging
- yes
Display & extras
- Display
- 0.49in 64x32 OLED
- Extras
- lora
ESP32-S3FN8 + SX1262 LoRa dev board in a slim stick form factor with a tiny 0.49in OLED, native USB-C, and lithium battery charging.
Firmware for this board
No firmware recipes yet — help add one.
Notes
- ESP32-S3FN8, 8 MB SiP flash, no external PSRAM
- SX1262 LoRa transceiver
- io.gpio_exposed=28 QUOTED: Heltec's Wireless Stick (V3) datasheet Pin Definition table lists Header J2 GPIO {21,44,43,33,34,35,36,37,38,39,40,41,42,45,46} (15 pins) and Header J3 GPIO {19,20,0,47,48,26,7,6,5,4,3,2,1} (13 pins) -- 28 header-exposed pads total (same carrier design as the sibling V3 boards, just split differently across the two headers); the SX1262's SPI bus (GPIO8-11) and RST/BUSY/DIO0 (GPIO12-14), plus the OLED's I2C data lines (SDA_OLED/SCL_OLED, GPIO17/18), are wired directly to the onboard radio/display and never reach either header
- io.gpio_free=18 DERIVED: subtracting esp32-s3's soc.reserved_pins that are exposed here (strapping {0,3,45,46}: all 4 present; usb_flash_tied {19,20,35,36,37}: all 5 present -- 9 total) and the OLED reset line shared with the header (GPIO21, labeled "OLED RST" in the datasheet) gives 28 - 9 - 1 = 18
- usb_serial derived from usb.bridge (cp2102)
Verify my board
Reads the connected chip over USB and checks it against what esp-atlas cites for Wireless Stick (V3) — over Web Serial, no backend, nothing leaves your browser.
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Serial monitor
Not connected.