If you manage to burn the Arduino bootloader, than you should be able to upload sketches from the IDE similarly to the technique used for the Single Sided Arduino (through the serial interface). This circuit reference could be useful: Concretely the lower-left part of it, which shows the pinouts of the RS232 connector used along with some transistors to lower the potencial 12V to TTL logic. But if the RS232 to USB convertor shown in your photo is the 'PremiumCord ku2-232a', or a similar one based on the 'FT232RL' chip, than it should output a maximum of 4.9V as HIGH on the RS232 side, according to it's. Therefore you should be able to safely use it without the transistors. To the construction of the device: I would just tie the according pins on the ATtiny13: PIN5 on ATtiny13 - MOSI (Master Out Slave In) to PIN3 on the RS232, PIN6 - MISO to PIN2 and the PIN1 - RESET to PIN4.

Than PIN4 on ATtiny (GND) to PIN5 on RS232. Auran Download Station there. But you still need to get 5V from somewhere and it needs to share the same ground with the RS232 connector (preferably from an USB of the same PC).

ATtiny2313 tutorial. ATtiny2313 Tutorial Introduction. There is one that works from the PC parallel port and one that works from the PC serial port. ATtiny2313 or ATtiny4313 for brains; USART Serial interface to the device under test; LCD display 2 x 16 characters; Keyboard controlled brightness; Keyboard or pot controlled contrast; USB keyboard with USB to PS/2 adapter; Programmable through back panel connector. Schematic diagram of ATtiny2313 serial terminal. One problem with the Arduino-way of managing the serial port for ATtiny processors is the need for a largish receive buffer. I had hoped to develop a model / example that could eliminate the need for the buffer. As you have discovered, my interest drifted away from the x313 family before I finished. A more detailed explanation: here A solution for the missing ADC Atmel has some application notes on how to make a cheap ADC, using the comparator On the Attiny2313.

ATtiny2313 In Production The high-performance, low-power Microchip 8-bit AVR RISC-based microcontroller combines 2KB ISP flash memory, 128B ISP EEPROM, 128B internal SRAM, universal serial interface (USI), full duplex UART, and debugWIRE for on-chip debugging. The device supports a throughput of 20 MIPS at 20 MHz and operates between 2.7-5.5 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. Also see the picoPower version.