The-Nevik electronics

home > The-Nevik > Electronics

4 October 2006

The-Nevik - Electronics
November 1997

Motherboard Circuit @ 20th September 2000
With the Kludged 1N4148 diodes on the L293E

Motherboard layout

Motherboard parts
Veroboard
2 x 12 way 0.1 headers
2 x SPDT pcb switches
1 x 1N4001 diode
1 x 20 way DIL socket
1 x L298E 
3 x 4k7 resistors
4 x 0u1 ceramic disk capacitors 
	(using two 0u1 in series made the LDR readings better in the POT command) 
8 x 1N4148 diodes (for L293E protection, omit if using L293D)

Charger-socket parts - (see photo 12)
1 x 3.5mm jack socket
1 x 1N4148 diode

Stamp Brain ver.1

Note the position of the LED and it's jumper have been swapped to make it easier to change the jumper when plugged into the motherboard with a peripheral card in the next slot.

8 LED display