PGM-51 is a low cost Flash Programmer from Laktronics,India, capable of programming 89C1051, 89C2051, 89C4051, 89C51, 89C52, 89S51, 89s52, 89S53, 89S5252, 89C55, and 89CLV55 devices from Atmel. A Windows based software is used to download Intel hex file compatible codes via the Serial Port of a PC.