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Main Board
Sebastien Lelong
SirBot
2005
| Revision History | ||
|---|---|---|
| Revision $Revision: 1.5 $ | $Date: 2006/04/06 14:30:47 $ | |
| Initial creation | ||
- Table of Contents
- 1. Electronic diagram
- 2. Electronic assembly
- 3. Results
- 4. Tests
1. Electronic diagram
The Main Board corresponds to the following diagram:
For the RS232 module, we have the following diagram:
Table 1. Main Board components
| Name | Value | Picture |
|---|---|---|
| R1, R2 | Resistances 1K |
|
| C1 | Condenser 10µF |
|
| C2 | Condenser 100nF |
|
| C3, C4 | Condenser 22pF |
|
| C5, ..., C9 | Condenser 1µF |
|
| D | Diode 1N4001 or 1N4004 |
|
| L1 | Led |
|
| Q | Quartz 4MHz |
|
| REG | Voltage regulator 7805 |
|
| CI1 | Microchip PIC 16F628 |
|
| CI MAX232 | MAX232 |
|
| J | power supply connector 2.5mm |
|
| K | 26 pins connector |
|
| K2 | RS232 connector (male) |
|
|
This board needs a (at least) 9V/500mA power supply, not regulated (there is a voltage regulator on the board). |
1.1. Connection specifications
The Main Board provides a bus connection (via connector K). Every external modules have this connector so they can be plugged-in and controlled by the Main Board . Thus, this bus provides communication capabilities between every boards and must respect the following specifications:
-
The connector has 26 pins.
-
18 pins are used to have access to every pin of the PIC 16F628
-
2 pins are used to provide power supply to other modules.
-
So, 6 pins aren't used yet
2. Electronic assembly
The following pictures show the implementation of the components on a board (with holes) and the reverse side of the board.
