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Carbon Bluetooth Speaker Build
I always enjoy your Great Scott videos. Very informative, well thought out and neatly executed. I concur about the difficulty of making a spot-welder and using solder instead. As long as careful steps are taken to avoid overheating the cells, soldering works as well or better than spot-welding. I wonder, however, why you included a BMS when you're already using a balance charger? I made a similar instructable recently for an e-bike battery pack that included a balance charger but no BMS because there was no room for one: https://www.instructables.com/id/How-to-Rebuild-a-BionX-E-Bike-Battery-Pack/
Dremel Belt Sander Attachment
Inductance/Capacitance Meter Saga
Build a Resistor/Capacitor Selection Box
Nice idea! Can you read the data while on the run, say, in an Android phone?
Easy as pie GPS datalogger
Thanks for your comments!
Raspberry Pi Class
How to Use Windows Laptop As Monitor for Raspberry Pi
Thank you for your comments! I was beginning to think that no one was reading this instructable. Lithium-ion cells are perfectly safe as long as they are charged and used properly. They become dangerous when left on poorly designed chargers for long periods or are mishandled in use, hence the emphasis on safety.
I published an instructable about eight days ago. It now has over 1700 views and 22 favorites, but not a single comment. Is that typical or am I doing something wrong?
How to Rebuild a BionX e-Bi...View Instructable »
Smoking in an apartment
Kane Tsugi Joint - Three way pinned corner mitre
ESP8266 WiFi Module for Dummies
In order to carry on this activity, legally or otherwise, you hear one expression used over and over: "Check your local laws." A one-word question: How? (It's not as easy as it sounds). Try it.Another question for those who like moral debates: If you leave your house unlocked (or inadequately locked as this instructable suggests) and your house is robbed, who is responsible? Pretend you're an insurance agent and answer the question. The amount you get from your insurance company determines your level of responsibility. In most cases, the criminal is not even in the discussion.
Deep down in the comments other people have said the same about the venerable old IRFZ44N. One or two commenters listed alternatives though I don't know how good they are. I chose the IRFZ44N because it is fully "on" at logic levels but will take a gate to source voltage (Vgs) of up to 20V, a maximum drain to source voltage (Vds) of 55V, and a maximum power dissipation of 110 Watts. Any N-channel MOSFET in those ranges should work as well. As for setting R2, just start in the mid-range and follow Step 4. Bear in mind that this is a voltage device, not a current device. If your current meter shows anything over an amp you will overheat things. A fast scope will help you a lot but it is not required. A 15k 10-turn trim pot f...see more »Deep down in the comments other people have said the same about the venerable old IRFZ44N. One or two commenters listed alternatives though I don't know how good they are. I chose the IRFZ44N because it is fully "on" at logic levels but will take a gate to source voltage (Vgs) of up to 20V, a maximum drain to source voltage (Vds) of 55V, and a maximum power dissipation of 110 Watts. Any N-channel MOSFET in those ranges should work as well. As for setting R2, just start in the mid-range and follow Step 4. Bear in mind that this is a voltage device, not a current device. If your current meter shows anything over an amp you will overheat things. A fast scope will help you a lot but it is not required. A 15k 10-turn trim pot for R2 might make the adjustment less sensitive. Yes, the tone is important. You may or may not hear it if you use inductors that are wildly different from mine. You'll definitely not hear it if your 555 is not working properly. You should see a nice series of short-duration 12V pulses going into the gate of your FET (see Step 4). If the signal is clean then the FET will not get warm. If it is noisy then the FET may not turn off completely causing it to overheat. The inductors, C4 and D2, however, will get quite warm to the touch. The trick is to adjust the pots so they do not become too hot to touch after extended use. In my case that corresponded with a total current consumption of about .7 amps and a 50V spike going into the battery.
Long range, 1.8km, Arduino to Arduino wireless communication with the HC-12.
Bicycle BoosterPack: A 3D Printed Portable Electric Assist
How to Make a Raspberry Pi Media Panel (fka Digital Photo Frame)
Make a Battery Protection Circuit (low voltage cut-off)
DIY Pen/Mini Lathe
How to Apply and Sell with Handmade at Amazon
DIY Bluetooth Headphones [Sony MDR-V6 wireless mod]
ScrapPi - Upcycled Media Hub
250 Class FPV Drone Under $350
Delta Bot: DIY 3D Printer
Hack and upgrade your stereo system with a bluetooth module
How to Weld - MIG Welding
Bitcoin Mining using Raspberry Pi
How To Create An Android App With Android Studio
Make Money With Your Instructables
Make wireless charging mouse
Use your iPhone to Scan Vehicle Codes And Read Sensor Data
Hidden Fridge Gap Slide-Out Pantry
Make A Wi-fi Webcam From An Old Android Phone
Make a CNC mill with a laser cutter
Repurpose an old wifi router for the internet-of-things
6 Tips to building a better Cross-cut Sled for your Tablesaw
Build this Woodworker's Workbench to learn Mortise & Tenon Joinery
Make your own cellphone from scratch.
Impowered electrical outlets
Bicycle Frame Polar Tracker
The secret server
transparent gearbox on a homemade bicycle
Turning new handles for your lathe tools
How to sharpen lathe chisels
Brain-Controlled RC Helicopter
Folding coffee table
How to reverse engineer a schematic from a circuit board
Mini-Tablesaw / Router / Shaper for Dremel rotary tool
A Universal RFID Key
Home automation server with router
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