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ESP-SOLO-1 - Single-Core Wi-Fi/BT/BLE Module



Delivery: Regular Temp ships same or next business day, High Temp ships within 5 to 7 business days

Availability: in stock

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The Espressif ESP-SOLO-1 is a high-performance module built around the ESP32-S0WD chip and capable of supporting Wi-Fi, Bluetooth (BT), and Bluetooth Low Energy (BLE).

This combination module comes standard with 4MB flash memory and offers a single-core 160 MHz processor with all the great features and peripherals of a dual-core system.

Peripherals included in the ESP-SOLO-1:

  • Capacitive touch sensors
  • Hall sensors
  • I2S
  • I2C
  • Ethernet
  • High-speed SPI
  • Low-noise sense amplifiers
  • SD Card interface
  • UART


The integrated ESP32 chip delivers a sleep current less than 5 µA, making the module essential for battery powered Internet of Things (IoT) applications. With a data rate, up to 150 Mbps and output of 20 dBm the device is able to support a wide range of uses.

The ESP-SOLO operates on freeRTOS LwIP, and TLS 1.2 with hardware acceleration built-in. It is fully-customizable with an open-source platform and secure encrypted over-the-air (OTA) updates, that allow firmware to be updated in deployed products with low cost.

GitHub provides a large collection of example code and information for device customizations.

Common applications include:

  • Internet of Things (IoT) solutions
  • Sensor networks
  • Voice encoding
  • Wearable electronics
  • Home automation
  • Music streaming
  • MP3 decoding



Order Summary


Flash Memory
Operating Temperature
Manufacturer Part #
GC-ESP-SOLO-1 4 MB -40ºC to 85ºC (-40ºF to 185ºF) ESP32-SOLO-1
GC-ESP-SOLO-1-HT 4 MB -40ºC to 105ºC (-40ºF to 221ºF) ESP32-SOLO-1 (M113SH3200PS3Q0)

Features of the ESP-SOLO-1

  • Combo Wi-Fi, Bluetooth (BT), and Bluetooth Low Energy (BLE) module
  • Integrates with the ESP32-S0WD chip
  • Single-Core 160 MHz CPU
  • Sleep current is less than 5 μA, making it suitable for battery-powered and wearable-electronics applications
  • Classic Bluetooth for legacy connections, supporting:
    - L2CAP
    - SDP
    - GAP
    - SMP
    - AVDTP
    - AVCTP
    - A2DP (SNK)
    - AVRCP (CT)
  • Including BLE GATT-based profiles, such as BlueFi, SPP-like, etc.
  • Bluetooth Low Energy (BLE) connects to smart phones, broadcasting low-energy beacons for easy detection
  • Fully certified with integrated PCB antenna and software stacks
ANTENNA Internal On-Board PCB antenna
Green: RoHS, REACH
DIMENSIONS 18 mm x 25.5 mm x 3.1 mm
FIRMWARE Upgrade: UART Download / OTA (via network)
Download and write firmware via host
FREQUENCY BAND 2.4GHz ~ 2.5GHz (2400M ~ 2483.5M)
INTERFACES SD Card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR GPIO, Capacitive touch sensor, ADC, DAC
448kB ROM
520kB SRAM
PINS 38 pins
POWER Average Current: 80 mA
Minimum Current: 500 mA
PROTOCOLS Wi-Fi: 802.11 b/g/n (802.11n up to 150 Mbps)
Wi-Fi: A-MPDU and A-MSDU aggregation and 0.4 µs guard interval support
Bluetooth: Bluetooth v4.2 BR/EDR and BLE specification
  • Hall sensor
  • Touch sensor
SOFTWARE Supports Cloud server development
SDK for custom firmware development
TEMPERATURE RANGE Operating: -40ºC to 85ºC (-40ºF to 185ºF)
Storage: -40ºC to 150ºC (-40ºF to 302ºF)
High Temp option: -40ºC to 105ºC (-40ºF to 221ºF)
TIMERS On board clock: 40 MHz crystal
VOLTAGE Operating: 2.7V ~3.6V


ESP-SOLO-1 Datasheet View (PDF)
ESP32-S0WD Datatsheet View (PDF)

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