TEC-1G SD Card Interface and 8bit Input/Output GPIO Module

Micro SD Card

Back in the day, the TEC-1 only had a Tape interface to save or restore your programs. Today, most would not know what a cassette tape looks like, let alone own a working deck. Today is all about the SD Card, and that's what this module gives to the TEC-1G.

Note that the MON3 currently does not have the API to make use of the SD Card, but it is currently in development. Keep an eye on the GitHub for new versions that support the SD. There is currently some rudimentary test code and of course you could always help by developing something for the community.

General Purpose Input & Output

But this module also has a secondary purpose; Ever wanted to control things out in the real world, like a robot arm, or some water sprinklers? Ever wanted to make your TEC-1 work like an alarm system, with movement detectors and reed switch inputs and siren outputs?

Well you can't do that directly; you need relays, and this is the board that lets you control relays and also take up to 8 inputs from switches and sensors. Your imagination really is the limit once you have this interface to the real world.

And the best thing is if you need more than 8 inputs or outputs, you can stack up to three (3) of these units on top of each other, each with its own Port address. That gives you up to 24 input/outputs!

Kit Contents

Included in the base Kit:

• 1x Custom made PCB
• 1x 8pin x 2rows long legged wire wrap socket
• 1x 2pin long legged wire wrap socket
• 2x 10pin female header connector, right angled
• 1x 3pin x 2rows (6) header pins, right angled
• 2x 20pin DIP socket
• 1x 14pin DIP socket
• 1x 330R resistor
• 1x 3mm Red LED
• 1x 100n capacitor
• 1x 74HCT245
• 1x 74HCT32
• 1x 74HCT273
• 1x Micro SD Card Module

The "Testers" are used for exactly that: Testing the inputs and making sure outputs are as expected while developing your code. If buying multiples of this kit, you probably only need one set of testers.

Testers include:

• 2x mini PCBs
• 2x 10pin male header strip, right angled
• 1x 330R resistor network
• 1x 10K resistor network
• 1x 8pole DIP switch (for the input tester)
• 1x 8Bar LED module (for the output tester)