If you purchased your Altair-Duino Experimenter kit prior to October 2024, it’s highly likely that the Processor Technology Music System does not work. This is due to two traces missing from the small expansion board. This is an easy fix.First, make sure you have the Altair-Duno Experimenter (not the previous Standard version, or the Pro version). The rear panel of … Read More
OpenAC1 Schematics
Click to download: OpenAC1 Board Schematic version 1.0 There is also a Github repository: https://github.com/davischris/OpenAC1
Arduino Due Pinout
Arduino Due Pinout with Altair-Duino pins.
µKenbak-1 Schematic
Click to download: µKenbak-1Schematic
Altair-Duino Schematics
If you are looking for a schematic for version 1.4 or earlier, I’m afraid they do not exist. Click to download: Altair-Duino Schematic version 1.5.2 Pro I/O Board Schematic version 1.3 Standard I/O Board Schematic version 1.0 Altair-Duino Schematic version 2.0.4+ Pro I/O Board Schematic version 2.0.4+ Altair-Duino Experimenter 2.5 Altair-Duino Experimenter 2.5 VT100 Emulator Altair-Duino Experimenter I/O Altair-Duino Pro … Read More
nanoKenbak-1 Schematic
Click to download: nanoKenbak-1Schematic
Use Telnet over WiFi
You may have noticed the footprint for the ESP-01 on the circuit board, and several people have asked why it’s there. When I made my first Altair-Duino in 2017, I had just finished a project with the ESP-01 (a Wi-Fi module that allows microcontrollers access to a Wi-Fi network). I knew I wanted to add WiFi capability to my new … Read More
Use Serial Port
This works with the following versions of the Kenbak-1: Full-Size Kenbak-1 New µKenbak-1 Write out memory to USB serial port: Press BitN+DISPLAY writes program memory as 16 lines of 16 bytes of octal data to the serial port. BitN sets the baud rate as shown below. Read memory from USB serial port: Press BitN+SET reads program memory from the serial … Read More
Run Program at Power-On
This works with all versions of the Kenbak-1: Full-size Kenbak-1 µKenbak-1 nanoKenbak-1You can set a stored program to launch at power-up. To load a pre-defined program: With the power off, press STOP+BitN, where N = the button representing the pre-loaded program (eg. STOP+3 for the BCD real-time clock.) While holding the buttons, turn the power on. Release buttons after the … Read More
Add Wifi to Altair-Duino Standard
So you’d like to add an ESP-01s to your Altair-Duino Standard? Well you’re in luck because it’s very easy. Adding an ESP-01s will allow you to connect with Telnet via WiFi. Your Altair-Duino already has a place on the PCB to add the ESP-01s. The TX/RX line are connected to pins 18/19 on the Arduino. Unfortunately, if your Altair-Duino already … Read More