https://obd2.market/product/uusp-upa-usb-serial-programmer-set-v1-3/
UUSP UPA-USB Serial Programmer Set V1.3
UUSP UPA-USB UPAUSB UPA USB Serial Programmer Set V1.3
upa usbserial programmerset
https://dorkbotpdx.org/blog/spacewrench/broken_teensy_txtzyme_perl_avr_serial_programmer/
Broken Teensy + Txtzyme + Perl = AVR Serial Programmer!
brokenteensyperlavrserial
https://www.circuitvalley.com/2011/04/avr-serial-port-programmer.html
AVR Serial Port Programmer
About AVR Programmer This simple COM PORT based AVR atmega Programmer will allow you to painlessly transfer hex programs to most AT...
serial portavrprogrammer
https://www.kanda.com/blog/microcontrollers/avr-high-voltage-programmer/
AVR High Voltage Programmer - High Voltage Serial and Parallel
Mar 19, 2024 - AVR High Voltage Programmer - High Voltage Serial and Parallel to reset ATtiny and AVRs with Reset or SPIEN fuses disabled
high voltageavrprogrammerserialparallel