Simplest ultrasonic ANTISPY voice recording jammer based on ATTINY13 / ATTINY85/45/25 / ARDUINO with PAM8403 / TPA3116D2 module driving piezo ultrasonic transducers (and optionally AD8933 signal generator)

Simple soldering controller for hakko 936 type soldering iron. Based on attiny85.

This MCC based MPLAB X example shows how to calibrate the gain and offset of the OPAMP when configured as a Programmable Gain Amplifier (PGA). The internal DAC and ADC are used to perform the calibration procedure. No external components are required.

This MCC based MPLAB X IDE example shows how to interface an electret microphone with a microcontroller (MCU) using the Analog Signal Conditioning (OPAMP). In addition to the microphone, only one resistor and one capacitor are required.

This MCC based MPLAB X IDE example shows how to use the Analog Signal Conditioning (OPAMP) peripheral to implement a constant-current driver using just one external resistor. The constant current amperage setting can be adjusted using firmware control.

(For My Teaching Tutorial Blog) It is an Utility class to read a number of swirches (push button) using only one analog input. With debouce .

This project demonstrates the internal gain ladder of the OPA module by setting it to output various DC levels that are proportional to the internal resistor ratios.