January 2019
Intermediate to advanced
458 pages
10h 35m
English
Content preview from Hands-On Embedded Programming with C++17
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ESP8266/ESP32
The ESP family are 32-bit MCUs that are produced by Espressif Systems, with integrated Wi-Fi (both) and Bluetooth (ESP32) functionality.
The ESP8266 first appeared in 2014, when it was sold by a third-party manufacturer, Ai-Thinker, in the form of a module (ESP-01) that could be used by another MCU or microprocessor-based systems to provide Wi-Fi functionality. The ESP-01 module contained firmware for this purpose, which allowed the module to be addressed using Hayes-style modem commands.
Its system specifications are as follows:
- Tensilica Xtensa Diamond Standard L106 microprocessor (32-bit)
- 80-160 MHz CPU speed
- Less than 50 KB of RAM available for user applications (with Wi-Fi stack loaded)
- External SPI ROM (512 KB to 16 ...