basic code for using - updates later/* MIDI note player This sketch shows how to use the serial transmit pin (pin 1) to send MIDI note data. If this circuit is connected to a MIDI synth, it will play the notes F#-0 (0x1E) to F#-5 (0x5A) in sequence....
The work by others to port Arduino BASIC to the Smart Response-XE device was of interest, but I wanted a few enhancements to extend battery life (auto shutdown) and I wanted an easier way to do math on the console rather than typing "PRINT" everytime...
First of all, to obtain weekly comics release lists from the ShortBoxed comics API, I developed a web application in PHP running on Raspberry Pi. Then, I used an Arduino Nano 33 IoT to get comics release lists transferred by the PHP web application and...
The Binary Encoder The first Working Digital Computer module described in the book was the Binary Encoder. Here's what it looked like: It's job was to accept decimal input from the operator and convert it into binary codes the computer could use. ...
According to some old data I posted back in july 2013, when I was installing it, the temperature of the LED test point is 110 degrees with no chimney, and 80 degrees after the chimney was added.Right now, I did a similar test with thermal imager. Without...
The selection of the feedback resistors is critical. The standard output voltage is supposed to be 3.3V. For the appropriate resistor values i just checked the datasheet which had a table with values. Since the I want to be able to select the output...
I have been looking for a good mid range Dash cam for my car. I was thinking to integrate this to my custom build infotainment system. For this, there need to be some option to get live stream. I bought this DDPAI Mini Car Dash Camera from Amazon Link (Official...
I made many projects regarding Audio amplifiers and preamplifiers but this tutorial is for the visual music experience. I am going to make a music reactive neopixel based LED strip. The LEDs will glow according to the change in beat and the color is...
Emillotron - part 1 The title is a mix (a crasis) between Emilio (my name) and Mellotron. The Mellotron was used in the 1960s, in the time of the Beatles. In those years, long before “digital music”, someone invented a mechanical system...
Programmer Design OptionsStrip-board works well (I use A$8 41 x 144 board), but I did look at using a mini-Mega2560: I used an on-board Arduino Nano as they are cheap (and I have a couple of them lying around) and they provide serial and power.But...
Video showing the bat sonar in actionThis video shows the sensor in action. The left graph shows the identified targets. The size of the circles indicates the strength, and the location on the graph is their measured location. The graph...
New year, new hacks I've decided to finally have a go at the bulky thermometer with nixie displays that's been languishing in my cupboard. I bought it at the same surplus shop where my #Restoring a Beckman neon display clock came from. The box is quite...
Hey guys, in this video, we will be making a compact circuit that can be fitted in a glove to control Robots using Gesture commands. It’s really cool to control a pick and place robot completely using hand gestures right? I have been making gesture...
I bought a bunch of Z80 parts on ebay for cheap ($10 plus shipping). The parts came on a PCB which had not yet been flow soldered. From the date codes of the parts it looks like it was stuffed sometime around 1999. All I had to do was straighten...
1 Intro The Enecsys Gateway is a Zigbee gateway allowing communications between the Enecsys microinverters and their monitoring backend. The Enecsys company is unfortunately defunct since 2015 and their DNS domains have been taken over by a UK enecsys...