This is my experiment with DAC. First i am using external DAC. I am using PCF8591 I2C using STM32F103 and arduino framework. The result is terrible. It just got 10Hz with 100 resolutions. Unfortunately, i don’t have SPI DAC so …
The L293D motor driver can be use for stepper motor driver, but i wouldn’t recommend. First, it’s only draw maximum 600mA. Second, it doesn’t have current limiter. Here is L293D using AccelStepper library: Here’s using A4988 using same AccelStepper library. …
Another simple project to make more my daughter motivation. Using led matrix 4x MAX7219 and ESP32, it’s connect to youtube API and Alexa so we can turn on and turn off the display via Alexa command.
If you have an openwrt router and need to reset to factory setting, but you can’t enter the console such as lost IP for your router or wrong configuration so the router can’t accessible, you’re not alone. You need USB …