(while powering from FTDI) make -f hello.mic.45.make sudo make -f hello.mic.45.make program-avrisp2 dhcp-18-111-104-176:desktop adammarblestone$ make -f hello.mic.45.make avr-objcopy -O ihex hello.mic.45.out hello.mic.45.c.hex;\ avr-size --mcu=attiny45 --format=avr hello.mic.45.out AVR Memory Usage ---------------- Device: attiny45 Program: 568 bytes (13.9% Full) (.text + .data + .bootloader) Data: 201 bytes (78.5% Full) (.data + .bss + .noinit) dhcp-18-111-104-176:desktop adammarblestone$ sudo make -f hello.mic.45.make program-avrisp2 Password: avr-objcopy -O ihex hello.mic.45.out hello.mic.45.c.hex;\ avr-size --mcu=attiny45 --format=avr hello.mic.45.out AVR Memory Usage ---------------- Device: attiny45 Program: 568 bytes (13.9% Full) (.text + .data + .bootloader) Data: 201 bytes (78.5% Full) (.data + .bss + .noinit) avrdude -p t45 -P usb -c avrisp2 -U flash:w:hello.mic.45.c.hex avrdude: AVR device initialized and ready to accept instructions Reading | ################################################## | 100% 0.01s avrdude: Device signature = 0x1e9206 avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed To disable this feature, specify the -D option. avrdude: erasing chip avrdude: reading input file "hello.mic.45.c.hex" avrdude: input file hello.mic.45.c.hex auto detected as Intel Hex avrdude: writing flash (568 bytes): Writing | ################################################## | 100% 0.20s avrdude: 568 bytes of flash written avrdude: verifying flash memory against hello.mic.45.c.hex: avrdude: load data flash data from input file hello.mic.45.c.hex: avrdude: input file hello.mic.45.c.hex auto detected as Intel Hex avrdude: input file hello.mic.45.c.hex contains 568 bytes avrdude: reading on-chip flash data: Reading | ################################################## | 100% 0.17s avrdude: verifying ... avrdude: 568 bytes of flash verified avrdude: safemode: Fuses OK avrdude done. Thank you. dhcp-18-111-104-176:desktop adammarblestone$ (after removing the ISP connection) dhcp-18-111-104-176:desktop adammarblestone$ ls /dev/tty.* /dev/tty.Bluetooth-Modem /dev/tty.Bluetooth-PDA-Sync /dev/tty.usbserial-FTF6JU97 dhcp-18-111-104-176:desktop adammarblestone$ python hello.mic.45.py /dev/tty.usbserial-FTF6JU97 How this program manages to sample fast enough to record audio (300-3500 Hz): it uses a buffer // // free-running sample loop // for (i = 0; i < NPTS; ++i) { // // initiate conversion // ADCSRA |= (1 << ADSC); // // wait for completion // while (ADCSRA & (1 << ADSC)) ; // // save result // array_lo[i] = ADCL; array_hi[i] = ADCH; } for (i = 0; i < NPTS; ++i) { // // send result // put_char(&serial_port, serial_pin_out, array_lo[i]); put_char(&serial_port, serial_pin_out, array_hi[i]); }