Rotary Encoder with I2C Interface and RGB Lighting

From on the Tindie blog:

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Rotary Encoder with I2C Interface and RGB Lighting

Makernet Knob’s makes the point that “Rotary encoders are cool but hard to wire into your projects.” Having wired up a custom input device for my computer using an encoder, I can attest to both of these statements. In my case, it took me quite a bit of time simply to figure out how each encoder pin was used!

 

Rotary Encoder with I2C Interface and RGB Lighting

Reflowduino: Circuit Board Assembly for Everyone

Timothy Woo has launched a Indiegogo campaign to manufacture his open-source, Arduino-compatible, wireless PCB reflow oven controller:

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Reflowduino: Circuit Board Assembly for Everyone!

Reflowduino is the first completely open-source, Arduino-compatible reflow oven controller of its kind that enables practically anyone to assemble their own beautiful circuit boards at home!

Reflowduino comes loaded with features, all in a compact Arduino-compatible package, with full documentation, example code, demo app, and comprehensive wiki on Github.

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Reflowduino is designed to be extremely easy to use! The general concept is to switch the power of the appliance on or off with a solid-state relay as shown below, measuring the temperature by placing the thermocouple tip inside the oven during the whole process.

If nothing else, please share this campaign to your friends, family, and anyone who might be interested on social media! Remember that every view counts for me, and I’m depending on you to make this happen!

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Reflowduino: Circuit Board Assembly for Everyone

LTE NB-IoT Shield for Arduino

From Timothy Woo on Hackaday.io:

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LTE NB-IoT Shield for Arduino

This open-source LTE shield uses SIMCOM’s SIM7000-series modules with the latest LTE CAT-M technology to allow Arduino users to painlessly connect their low-power IoT devices with the next-generation cellular technology!

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NB-IoT is also available for many countries (but sadly not in the USA yet) simply by swapping out to a different SIM7000 module version. Luckily SIMCOM made it super easy to integrate this module because most of the AT commands are identical to previous version, and Adafruit has a wonderful library for their FONA 2G and 3G products. Check it out and help make this happen!

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You can view the latest code and design files here on my Github page: https://github.com/botletics/NB-IoT-Shield. Note: The hardware works great but software is still under development! I plan on launching an Indiegogo campaign when I get a fully-working prototype, so stay tuned for updates!

LTE NB-IoT Shield for Arduino

Arduino Neural Network Robot

Sean Hodgins created an Arduino-based robot that avoids light by navigating using a neural network:
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This project is meant to teach about utilizing neural networks in robotic platforms. There will be a 3 part video series on the Make YouTube channel on building the robot. It will start with prototyping and design, then move onto assembly and testing, and finally programming and running the neural network. You will be able to follow along and make your own robot in the end.

Part 2: Soldering and Assembly

 

 

Arduino Neural Network Robot

Reflowduino: Open Source Reflow Oven Controller

 writes on Hackaday about Timothy Woo’s Reflowduino:

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Hackaday Prize Entry: Reflowduino, the Open Source Reflow Oven Controller

Face it — you want a reflow oven. Even the steadiest hands and best eyes only yield “meh” results with a manual iron on SMD boards, and forget about being able to scale up to production. But what controller should you use when you build your oven, and what features should it support? Don’t worry…

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Dubbed the Reflowduino for obvious reasons, Timothy Woo’s Hackaday Prize entry has everything you need in a reflow oven controller, and a few things you never knew you needed.
 
 
Reflowduino: Open Source Reflow Oven Controller

Rotary Encoder with I2C Interface and RGB Lighting

From Jeremy S. Cook on the Tindie blog:

encoder (1).jpg

Rotary Encoder with I2C Interface and RGB Lighting

Makernet Knob’s makes the point that “Rotary encoders are cool but hard to wire into your projects.” Having wired up a custom input device for my computer using an encoder, I can attest to both of these statements. In my case, it took me quite a bit of time simply to figure out how each encoder pin was used!

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To help alleviate complicated wiring issues, this custom knob features a built-in I2C interface, which allows several (even hundereds) of knobs to be chained together without issue. Additionally, the top of the encoder can be depressed as a pushbutton, and it even has an RGB LED integrated inside of it to give you feedback right on the knob!

Rotary Encoder with I2C Interface and RGB Lighting

PIDDYBOT: DIY Arduino Balancing Robot

Sean Hodgins designed this open source balancing robot to help teach PID control:

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The PIDDYBOT

The PIDDYBOT is currently using a Atmega32u4 microncontroller. It uses 3 potentiometers that allow you to manually tune the PID loop to get the robot balancing. This allows you to see how each term affects the performance of the system. It is a great teaching tool for the classroom and is currently being used by students at McMaster University.
The design files and source code is available on GitHub:

IdleHandsProject/thePIDDYBOT

PIDDYBOT: DIY Arduino Balancing Robot