WiFi module ESP32-SOLO-1 for budget Internet of Things devices. Free Technical Library News

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ESP32-SOLO-1 WiFi module for low-end IoT devices

23.07.2019

The ESP32-SOLO-1 is Espressif's new high performance all-in-one module designed for a wide range of applications from low power wireless sensor networks to applications requiring voice processing or MP3 streaming audio encoding. The Wi-Fi+BT+BLE module is based on the ESP32-S0WD chip with one computing core.

Integration of Bluetooth, Bluetooth LE and Wi-Fi standards in a single chip guarantees the applicability of this module in any 2,4 GHz applications - both for direct data transfer to the user's device via Bluetooth, and for connection from anywhere in the world via a WiFi router. Support for BLE allows you to create inexpensive beacons (Beacon) based on the ESP32-SOLO-1 for positioning inside buildings or sending short information messages about goods.

Low current consumption - less than 5 μA - makes it possible to create stand-alone devices that can operate on batteries for years. The ESP32 supports speeds up to 150 Mbps and the 20 dBm output power guarantees good range.

ESP32-SOLO-1 uses freeRTOS operating system with LwIP and TLS 1.2 stack with hardware accelerator. Provides secure (encrypted) software download over the air (OTA).

Features of ESP32-SOLO-1:

Chip: ESP32-S0WD 5x5mm QFN
Integrated memory: 4 MB SPI FLASH
Frequency range: 2,4...2,5 GHz
WiFi support: 802.11 b/g/n (up to 150 Mbps)
Bluetooth support: v4.2 BR/EDR and BLE
Sensitivity: up to -97 dBm
Output power: 20 dBm (max, 11b mode)
Interfaces: UART, SPI, I2C, PWM, I2S, GPIO, ADC, DAC, etc.
Quartz resonator: 40MHz (10ppm)
Operating voltage: 2,7...3,6 V
Size: 18 x 25 x 3 mm; 38 pins (LCC)
Antenna: PCB with 2 dBi gain
Temperature range: -40...85°C.

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