For this project we use an open source Mosquitto MQTT broker. It is lightweight and is suitable for use on all devices from low power single board computers to full servers. Before we start installing, it's a good practice to update the system components...
It is a very easy, event-driven tool for setting up your own automation system. You may also find more formal and precise Node-RED definition on their website: "Node-RED is a programming tool for wiring together hardware devices, APIs and online...
The first step is the remove the camera from the Pixel 3a phone. The screen on this phone is pretty thin, so care should be taken. There are plenty of extensive descriptions of this process elsewhere online, so I will be brief. Separate the screen from...
Start by gluing together the screen mount and screen surrounds. You can always see how the parts go together in the FreeCAD model. Here you can see the 3 parts that make up the screen mount. All the other parts are hidden - by clicking on the eye...
The USB connector is a nice through-hole connector. Even though it has tiny legs, you should have no problem with it with your new surface mount skills! We've also extended the pads in opposite directions to give you plenty of space for the...
PCBs designed by our team are manufactured by JLCPCB - a hardware production company that specializes in batch PCB production. You can create PCBs with up to six layers, and order a batch size that fits your needs. Batch production is beneficial since...
Mounting:One hole sized for 4-40 screws (or M3). Screws and standoffs not included.Other Cool Stuff:There are test points a-plenty, just to help you troubleshoot stuff. Or you can solder wires to them and pull extra power lines off the badge...
Dull an existing blade Take the electric carving knife blade and use your dremel tool to completely dull down blade. Insert the modified blade into your electric carving knife's attachment insert. Using a sharp kitchen knife, cut into the bottom of your...
Get a plexiglass sheet of 4-5mm thick. Cut a piece of 40cm by 30 cm. (You can use whatever you have handy but will have to adjust the instructions for thickness) Try to cut it as square as possible. Use the 3D printed vertical motor mount to draw...
The leading character of the device, the daisy wheel is responsible for embossing the letters into the tape. start by picking the device from the side, as indicated above;make sure the magnet on the I_nema_wheel_hub is facing the hall sensor,...
Constructing the system by following Motorola's Application Note 1015 will be sufficient, with the exception that the schematic is missing 2 external connections on the MC68901. One of the timer outputs TCO or TDO needs to be tied to TC (transmit clock),...
Choosing the Operating SystemThe choice of the operating system totally depends on the type of work you do. I wanted the functions of a desktop so I went with the Ubuntu Mate OS. There are a few other's to be considered:1) Ubuntu Mate: Ubuntu MATE is...
Solder your components.... Use the longest headers you can find or an assortment of male headers and female headers (safer/easier for troubleshooting) to sandwich the teensy between the prop_shield and the audio shield....Above is shown the prop shield...
Remove the battery pack resistor, install lithium cells Step 1: Remove the top piece of the battery pack. Step 2: Without breaking the switch or battery contacts, carefully cut away the current limiting resistor and LED lead wires.Clip and discard the...
The first step is to get the boards and components. As some of you might be new to ordering custom boards, I quickly walk you through the process. Many of us hobbyists get their boards from dirtypcbs.com and that's where I get mine, too....