The 8051 was an 8-bit Harvard-architecture microcontroller first put out by Intel in 1980.  They’ve since discontinued that line, but it lives on in the low-cost STC8 family of chips, which ...
Connect humidity sensor AOSONG HR202L to ESP32, it measures temperature and humidity. AOSONG HR202L is a very inexpensive humidity sensor. We can buy it for $ 0.60 to $ 2. However, it is a little ...