This filter has the components calculated for the frequency of 1 kHz but can be changed. The input resistor can be 100k and the source symmetrical. Any operational amplifier can be used.
With a light pulse on the Q1 sensor the circuit turns on and locks. To switch off, a light pulse...
March 2017 - STMicrocoelectronics' new LoRaWan B-L072Z-LRWAN1 STM32 development board can now be...
This circuit is from the manual of the components used, from the 80s. The circuit is valid for...