ESP32-M1 Reach Out

A compact, open, and richly-featured ESP32-M1 dev board with a Wi-Fi range of up to 1.2 km

This project is coming soon. Sign up to receive updates and be notified when this project launches.

ESP32-M1 Reach Out is designed to help hobbyists, makers, developers, and engineers develop robust communication systems using Wi-Fi and Bluetooth protocols even at a distance. Reach Out features an ESP32 SoC with microcontroller and RF in a single package. Using the popular and well-documented ESP32 chipset makes getting going with long-range RF is as simple as can be.

The small form factor and methodical design of the ESP32-M1 features 17 GPIOS, 3 different voltage outputs, a USB bridge, digital external interfaces, external antenna connectors, and a high-power radio front-end for Wi-Fi. The board-to-board Wi-Fi line-of-sight range can be more than 1.2 km using 802.11b, while typical Wi-Fi range is closer to 200-400 m. This range is possible because of suitable parts selection, RF design optimization, tuning, and matching. The range can even be extended further if the radio behaves as a repeater.

Reach out is an excellent choice to implement remote monitoring and sensing, drone radios, long-range video streaming, security measures, mesh networking, etc.

Features & Specifications

  • MCU

    • ESP32-D0WDQ6, RF System on a Chip
    • MCU frequency of 240 MHz
    • CP2102 USB-serial bridge (USB to UART converter)
    • 32 Mbit flash
  • Radio Communication

    • Wi-Fi 802.11 b/g/n
    • Bluetooth 4.2 Classic and Bluetooth Low Energy (BLE)
    • QPF4219 PA and LNA Wi-Fi front-end from Qorvo - 33 dB PA gain and 14 dB LNA gain
    • Wi-Fi transmit output power: 27 dBm (half-watt) typical and max 30 dBm (1 watt), conducted
    • Configurable Wi-Fi transmit power
    • Wi-Fi front-end bypass mode, in which the Wi-Fi front-end is off, and only the ESP32 is used to transmit and receive - similar to Node MCU-32S.
    • Wi-Fi receiver sensitivity: -103 dBm for 802.11b, 11 Mbps, conducted
    • Separate external antenna ports for Wi-Fi and Bluetooth
  • Interface and Peripherals

    • UART, I²C, I²S, SPI
    • 12-bit ADC
    • PWM
    • 15 accessible GPIOs
    • 2 accessible input only IO
  • Input Power

    • USB +5 V, ~> 750 mA when using high power Wi-Fi front-end operation
    • USB +5 V, ~< 300 mA using normal Wi-Fi, BT, and general operation
  • Output Power

    • +3.3 V
    • +4.85 V
    • USB voltage
  • Dimensions

    • 40 mm (W) x 60 mm (L) x 1 mm (T)
    • 22 mm (W) x 22 mm (L) heat sink placement area x2

Open Source Hardware

ESP32 Reach Out is participating in the Qorvo RF Accelerator!

See Also

Subscribe to the Crowd Supply newsletter, highlighting the latest creators and projects: