csnol

Hi Sankaramp, I don't know which module you used for. and I was only use AT command on Arduino Uno + SIM8xx series GSM-GPRS module. I think it is difficult...

Yes， Maybe you need pull-up GPIO1 and GPIO2. Sorry, I don't know how to code a HTTP server use AT commands. Attention please, **"double MCUs, half stabilities."**

You can try the [LowPowerLab/SPIflash library](https://github.com/LowPowerLab/SPIFlash) https://github.com/LowPowerLab/SPIFlash or search Winbondflash in Github. For flash STM32 MCUs, please reference STM32 DS file and my codes. some functions be included in stm32ota.h...

Hi, @gsaikiran29 Below chips be tested. I think the library conpatible for all STM32F0xx and STM32F1xx series and STM32F401. maybe incloude all STM32 chips, You know I can't test all....

@danieleff It's maybe useful that change analogWrite() of STM32GENERIC/STM32/cores/arduino/stm32/stm32_PWM.c I've tested on STM32F0. ``` c++ void analogWrite(uint8_t pin, int value) { if(value == 255) { stm32_pwm_disable(variant_pin_list[pin].port, variant_pin_list[pin].pin_mask); pinMode(pin, OUTPUT); digitalWrite(pin,...

Yeeeeessss！ Busybox！ Good job, MAN!