The high-performance Microchip picoPower 8-bit AVR RISC-based microcontroller combines 16KB flash memory, 256B EEPROM, 1KB SRAM, 18 general purpose I/O lines, 32 general purpose working registers, one 8-bit timer/counter, one 16-bit timer/counter, two full duplex USARTs with Start Frame Detection, a universal serial interface (USI), I2C slave, internal and external Interrupts, an 12-channel 10-bit A/D converter, programmable watchdog timer with Ultra Low Power internal oscillator, and four 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.
“This article describes a set of minimal I2C routines that allow just about any Microchip/Atmel AVR processor to connect to I2C peripherals. To demonstrate the routines I’ve designed a port scanner that displays the I2C address of a …
“Reflow ovens are an important part of the development of PCB for electronic products when using surface mount components. They provide a route through which PCBs can be quickly populated with SMD components, however, for accurate results, the heat across …