Hi,
All the above suggestions are good enough to begin your study on microcontrollers. Basically start from
Step 1: I/O’s of microcontrolles(Interfacing LED’s, Digital Sensors & Keypad) –> It gives good knowledge to control I/O devices.
Step 2: Serial Communication (Sending & Receving data to & from Hyper Terminal) –> It mostly covers all the serial communication based devices.
Step 3: Parallel Interface (LCD)
Step 4: Interfacing ADC (Temperature Sensor)
Step 5: Commonly used micro controller features like SPI, I2C, TIMERS e.t.c
All the Best!!!!…