This is the circuit used for the first modules in the course and is developed from the initial introductory page as the course progresses.
Note: It's designed so you can program it in circuit using ICSP without removing the programmer and its designed so you can go back to any course module without changing the hardware again.
c programming course 1st part 16F88
Item Part Description Qty IDs
1 10u electrolytic capacitor 2 C1 C3
2 100n Capacitor 3 C2 C4 C5
3 1u electrolytic capacitor 4 C6 C7 C8 C9
4 DB9F-90 Dtype connector 9 way RS232 on PC COM port 1 CN1
5 2.1mm jack Power Connector socket showing NC connection 1 CN2
6 1N4001 diode 1 D1
7 RED Light emitting diode 6 D2 D3 D4 D5 D6 D7
8 1N4148 diode 1 D9
9 1x4 Header 4 way 1 HD1
10 Push button push button normally open 2 PB1 PB2
11 100 resistor 1 R10
12 10k resistor 2 R1 R2
13 1k resistor 7 R3 R4 R5 R6 R7 R8 R9
14 16F88 Microcontroller 1 U1
15 MAX232CP RS232 level translator 1 U2
16 LM7805C 5V 1A voltage regulator 1 U3
You'll also need a serial cable and 9-way serial connector, a digital Serial USB interface (cheap) and wall power supply 8V or more (less than 20V - the higher the voltage the hotter the 7805 will get - best to get close to 7V).
learn how to use Arduino pulseIn and pulseInLong to get the most accurate pulse measurement on an Arduino.
Switch debounce: Three different ways to debounce input push switches with one amazing method that you can't miss.
How to Easily Use the DS18B20 Maxim One-Wire thermometer with Arduino example code showing external or parasitic power modes.
How to use the BMP280 for weather pressure measurement or altitude change detection.
How to use the TCS230 (/TCS3200) Color detector chip and easily add it to any of your projects.
How to use MC78M05BDTRKG for maximum current without using too large a heatsink pad and how to select the optimum input voltage.