Some resources to help you getting started with STM32 programming.
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Frequently Asked Questions:
Q: What is the difference between the three modules ESP32-S, ESP32-WROOM-32 and ESP32-A1S?
A: ESP32-S and ESP32-WROOM-32 are common types of modules. The hardware and software parts are different except for the antenna form. The ESP32-A1S module has built-in AC101 audio decoding chip for audio-related development. Support for playing music and recordings
Q: What is the difference between ESP32-A1S and ESP32-Audio-kit?
A: ESP32-Audio-kit is the development board of ESP32-A1S, including ESP32-A1S module.
Q: What should I do when the ESP32-A1S module needs to use an external antenna?
A: The 0 ohm resistor connected to the onboard antenna needs to be shifted to the resistance position of the connected antenna carrier.
Q: Is the ESP32-A1S programming the same as the ESP8266?
A: Both use C language, but the program architecture is different.
Q: Does the ESP32-A1S support SPI communication with STM32?
A: Yes, but need secondary development.
Q: Which field is the main application of ESP32-A1S module? Which model is the built-in audio decoding chip? Which one is the factory default firmware? Does it support secondary development?
A: Mainly used in home smart devices, car smart devices, smart speakers and other programs, the built-in audio decoding chip is AC101, the factory default programming test firmware, the working state is divided into two modes: TF card mode and Bluetooth mode, two modes Switching by pressing the button, when the TF card is not inserted, it can only cut into the Bluetooth mode. When the TF card is inserted, you can use either mode. The TF card detection is only performed when the program is started. When the program is started, the TF card is not inserted. . AT command is not supported. If you need other functions, please refer to our ai-example example for firmware secondary development.
The ESP32-A1S is a new small-size, multi-function RF module from Essence . The module is equipped with a PCB onboard antenna and an IPEX external antenna interface, which can be used according to the scene requirements. Can be selected according to the needs of the scene.