Needs a location
AVR, PIC, ARM - those words might be unfamiliar to you, or quite the contrary - your night lamp is controlled by Arduino based DIY - you're equally welcome to join our microcontroller's inspired event.
We'll start by looking into basics of easy-to-start kits like Arduino, following with low-level C programming similar to what real Pro-s do. Sorry, but no ASM this time :P
(Yet I have an embedded Python [GPS+GSM] module for your amusement)
We'll be using chip datasheets (http://ww1.microchip.com/downloads/en/DeviceDoc/40044G.pdf) to make sense out of pins, registers, and voltages. Some intro about what fuses, timers, interrupts, USART, SPI, I²C, DAC and ADC, oscillator, watchdog, BOR, EEPROM, CCP and PWM, hardware stack, GPIO, ICSP, etc. are - is also planned.
Bring a laptop and/or your favorite board with you, together with the tools.
Inviting an unsuspicious friend will result in +1 to you karma.