- TrainCtl
- SLI
- Ultra
- Key
- Clock
- XMAS
- FanCtrl
- IRTank
- IRBetter
- Thermo
- MaryaToy
- MaryaBas
- PCTherm
- Servo
- MIC-II
- Video
- PIC17Dev
- Fuzzy
- RTOS1
- RTOS2
"MaryaBas" Project
When I looked at the second edition of this book, I wanted to updated the toy I built for my daughter to work through all the options I had envisioned for it. As well, I was dying to see what I could do with "PicBasic". The application shown here uses a PIC16C711 instead of the PIC16F84 because of its built in ADC. For the source code, I used the interrupt handler from MaryaToy and wrote an entirely new interface in PicBasic. The resulting project is quite useful and could be the basis of an even more impressive training tool for youngsters.
Click Here to look at the application's source code. PICmicro\code\maryabas\maryabas.hex is the application's hex file.
The circuit used for this application is the same as MaryToy except for the use of a PIC16C711 and the Pot wired as a voltage divider instead of a Resistor/Capacitor Delay circuit.
The bill of materials for this application is:
| Part | Description |
|---|---|
| U1 | 7805 +5 Volt Regulator |
| U2 | 74S138, 3 to 8 Demultiplexor |
| U3 - U4 | 74LS374, 8 Bit Register |
| U5 | PIC16C711-JW |
| Y1 | 4 MHz Ceramic Resonator with Internal Capacitors |
| 15 Segment | 6x 15 Segment Alpha-Numeric Common Cathode LED Displays |
| R1, R18, R19 | 10K, 1/4 Watt Resistors |
| R2 - R9, R11 - R17 | 220 Ohm, 1/4 Watt Resistors |
| R10 | 100 Ohm, 1/4 Watt Resistor |
| POT1 | 10K, Single Turn Potentiometer |
| C1 - C2 | 10 uF, 35 Volt Electrolytic Capacitors |
| C3 - C6 | 0.1 uF, 16 Volt Tantalum Capacitors |
| J1 | 9 Volt Battery Clip |
| SW1 | SPST Power Switch |
| SW2, SW4 | Momentary On Pushbutton Switch |
| Miscellaneous | Breadboard Prototyping System, Wiring |