Below are the details of the parts required to populate the 4 PCBs
MAIN CHASSIS PARTS
|
Component |
No of |
Description |
Supplier and Part No |
|
J3, J4 |
2 |
6 pin single row 2.54mm female connector to mezzanine |
Rapid Online Order Code: 01-5723 |
|
J1, J2 |
2 |
6 pin motor connector – angled male |
Rapid Online Order Code:22-0795 |
|
J6 |
1 |
2 pin battery connector |
Rapid Online |
|
J7 |
1 |
3 pin on/off right angle slide switch |
Rapid Online Order Code: 78-0566 |
|
D1 |
1 |
SB2100 3A Schottky Diode or 1N5401 3A |
Amazon search for SB2100 Rapid Order Code: 47-3144 |
|
U1 |
1 |
DRV8833 DC Motor Controller 2 x 6 pin breakout board Do not get 2 x 8 pin variant from Polulo |
Amazon or Ali Express search for DRV8833 |
|
U2 |
1 |
L4941BV 5V regulator |
Amazon Search for L4941BV |
|
C1 |
1 |
0.1uF Ceramic capacitor |
Rapid Online Order Code: 11-3442 |
|
C2 |
1 |
22uF 16V 4x7mm electrolytic capacitor |
Rapid Online Order Code: 11-4110 |
|
C3, C4 |
2 |
330uF 16V 8x12mm electrolytic capacitors |
Rapid Online Order Code: 11-0282 |
|
R1 |
1 |
47K To wake up motor driver from sleep |
Rapid Online Order Code: 62-0410 |
MEZZANINE PCB PARTS
|
Component |
No of |
Description |
Supplier and Part No |
|
J1 |
1 |
16 pin male pins connector to go to sensor board |
Rapid online Order Code: 08-7948 |
|
J3, J4 |
2 |
6 pin single row 2.54mm 20mm extended male headers Break 2 lots of 6 pins from one of these 20 pin ones from Pi Hut |
The Pi Hut part No 103531 |
|
J2 |
1 |
6 pin female 2.54mm connector for breakout or Bluetooth module |
Rapid Online Order Code: 01-5723 |
|
J5 |
1 |
4 pin female 2.54mm connector for breakout for OLED or IR receiver |
Rapid Online Order Code: 01-5835 |
|
U1 mount |
2 |
20 pin female 2.54mm connectors for Pico |
Rapid Online Order Code: 08-7949 |
|
U1 |
1 |
Raspberry Pi Pico any variant. Pico H is cheapest, but can use Pi Pico 2 or Pico WH 2Mb Get version with headers |
Rapid Online Order Code: 75-1230 |
|
SW1, SW2, SW3 |
3 |
Tactile switches 6x6mm 5mm height |
Rapid Online Order Code: 78-3821 |
|
R1, R2 |
2 |
680 ohm LED load resistors |
Rapid Online Order Code: 64-0068 |
|
D1, D2 |
2 |
low current Indicator LEDs |
Red Code: 56-0400, |
|
|
|
|
|
LINE SENSOR PCB PARTS
|
Component |
No of |
Description |
Supplier and Part No |
|
J1 |
1 |
16 pin female socket connector to Mezzanine board |
Rapid Online Order Code: 19-0087 |
|
Q1,Q6 |
2 |
BC337 transistor for LED switching |
Rapid Online Order Code: 50-3113 |
|
Q2, Q3, Q4, Q5 |
4 |
BPW85C 3mm phototransistors |
Farnell Order Code 1045524 or Ali Express |
|
D1, D2, D7 |
3 |
D1, D2, D7 – TLCR5800 line illumination LEDs or Truopto OSHR3131A-NO 3mm 3000mcd for a bigger spot |
Farnell order no 4912445 or Rapid-online Order code: 55-0066 |
|
D4, D5, D6 |
3 |
any low current LEDs for sensing indicators |
Red Order Code: 56-0400, Yellow Order Code: 56-0410 |
|
R1 |
1 |
33 ohm resistor for Power decoupling |
Rapid Online Order Code: 62-0334 |
|
R2, R15 |
2 |
390 ohm resistors for current limit to bases of Q1, Q2 |
Rapid Online Order Code: 62-0360 |
|
R3, R5, R17 |
3 |
10 ohm resistors for Illumination LED load resistors |
Rapid Online Order Code: 62-0326 |
|
R4, R16 |
2 |
10K ohms |
Rapid Online Order Code: 62-0394 |
|
R7, R8. R9, R14 |
4 |
2.2K ohm Phototransistor load resistors |
Rapid Online Order Code: 62-0378 |
|
R10, R11, R12 |
3 |
3 x 680 ohm Sensing indicator load resistors |
Rapid Online Order Code: 64-0068 |
|
C1 |
1 |
100uF 16V 5x7mm electrolytic capacitor for 5V power supply decoupling |
Rapid Online Order Code: 11-4119 |
|
C2 |
1 |
10uF 16V 4x7mm electrolytic capacitor for 3.3V power supply decoupling |
Rapid Online Order Code: 11-4109 |
WALL SENSOR PCB PARTS
|
Component |
No of |
Description |
Supplier and Part No |
|
J1 |
1 |
16 pin female socket connector to mezzanine board |
Rapid Online Order Code: 19-0087 |
|
Q1, Q2 |
2 |
BC337 transistor for LED switching |
Rapid Online Order Code: 50-3113 |
|
LDPD1, RDPD1, FPD1 |
3 |
BPW85C 3mm phototransistors – wall detectors |
Farnell Order Code 1045524 or Ali Express |
|
DLED1, DLED2, FLED1 |
3 |
TLCR5800 narrow beam line illumination LEDs |
Farnell order no 4912445 |
|
D1, D2, D3 |
3 |
any low current LEDs for sensing indicators |
Red Order Code: 56-0400, Yellow Order Code: 56-0410 |
|
R2, R7, R8, R9 |
2 |
33 ohm resistor R2 s for Pwr decoupling 10 ohm for wall Illumination LED load resistors R7,R8,R9 |
Rapid Online Order Code: 62-0334 Order Code: 62-0326 |
|
R1, R3 |
2 |
390 ohm resistors for current limit to bases of Q1, Q2 |
Rapid Online Order Code: 62-0360 |
|
R15 |
1 |
1.8K ohm Front facing phototransistor load resistor |
Rapid Online Order Code: 62-0376 |
|
R4, R6 |
2 |
10K ohm resistors |
Rapid Online Order Code: 62-0394 |
|
R11, R13 |
2 |
2.2K ohm Side facing phototransistor load resistors |
Rapid Online Order Code: 62-0378 |
|
R10, R12, R14 |
3 |
680 ohm Sensing indicator load resistors |
Rapid Online Order Code: 64-0068 |
|
C1, C2 |
2 |
100uF 16V electrolytic capacitor for LED power supply smoothing |
Rapid Onlline Order Code: 11-4119 |
|
|
MECHANICAL PARTS
Details to go in here re motors, motor mounts, nuts and bolts, skids etc