Content for ATtiny9


The high-performance, low-power Microchip 8-bit AVR RISC-based microcontroller combines 1KB ISP flash memory, 32B SRAM, 4 general purpose I/O lines, 16 general purpose working registers, a 16-bit timer/counter with two PWM channels, internal and external interrupts, programmable watchdog timer with internal oscillator, an internal calibrated oscillator, and 4 software selectable power saving modes. The device operates between 1.8-5.5 volts. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

ESP32 autoreset

“This little project utilises an ATtiny9 to automatically reset the ESP32 into bootloader mode. This little project utilises an ATtiny9 to reset an ESP32 into bootmode. It is used when programming the ESP32 with the Arduino IDE. I thought it …