Rajkumar Sharma over at Electronics Lab published a new build, a 3 tone siren based on UM3561 IC: 3 Tone Siren project produces Gun Sound, Police Siren and Ambulance Siren effects from a speaker. This project is built around UM3561 IC driving an LM386 audio amplifier to give that extra punch.
Category Archives: builds
USB Infrared Toy free PCB build
James built a USB IR Toy v3 free PCB. With the USB IR Toy you can use a remote control with your computer, view infrared signals on a logic analyzer, capture and replay remote control buttons. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever […]
Keithley 197 battery option build
Kerry Wong blogged about his Keithley 197 battery option build: I have been quite happy with my fixed-up Keithley 197 5 ½ digit bench meter purchased from eBay (you can find the teardown pictures here) earlier this year. Keithley 197 has a battery pack option (Model 1978), and this option allows it to run on battery […]
Bus Pirate v3.8 free PCB build
B-tronics built a free Bus Pirate v3.8 PCB. The Bus Pirate is an open source hacker multi-tool that talks to electronic stuff. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer. Get […]
Bus Pirate v3.8 free PCB build
AronFeher built a free Bus Pirate v3.8 PCB. The Bus Pirate is an open source hacker multi-tool that talks to electronic stuff. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer. Get your […]
Free PCB build: USB IR TOY v3 + updated irWidget firmware
mikelelere writes: I’ve finally put some time and acquired most of the required parts to assemble the USB IR Toy v3 free PCB I received a few weeks ago. I’ve been lately interested in making a “backup” of several remotes I’ve at home, and the USB IR toy with the IRWidget firmware seems like the perfect candidate […]
Bus Pirate v3.8 free PCB build
Cooler1989 built a free Bus Pirate v3.8 PCB. The Bus Pirate is an open source hacker multi-tool that talks to electronic stuff. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer. Get […]
Bus Pirate v3.8 free PCB build
@psmay tweeted picture of his free Bus Pirate v3.8 PCB build: If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer. Get your own handy Bus Pirate for $30, including world-wide shipping. Also […]
Bus Pirate v3.8 free PCB build
Mikelelere built a free Bus Pirate v3.8 PCB. The Bus Pirate is an open source hacker multi-tool that talks to electronic stuff. I eventually managed to get all the required parts to assemble the BP v3.8 free PCB I received a couple of months ago. The microusb connector was such a PITA to solder!! I […]
Bus Pirate v3.8 free PCB build
Iñigo built a free Bus Pirate v3.8 PCB. The Bus Pirate is an open source hacker multi-tool that talks to electronic stuff. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer. Get […]
Bus Pirate v3.8 free PCB build
twinpeaks built a free Bus Pirate v3.8 PCB. The Bus Pirate is an open source hacker multi-tool that talks to electronic stuff. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer. Get your own […]
Bus Pirate v3.8 free PCB build
MrMobileWill blogged about his free Bus Pirate v3.8 PCB build. The Bus Pirate is an open source hacker multi-tool that talks to electronic stuff. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer. Get […]
Modularized homebrew spectrum analyzer
Mathias Weyland writes, I’m building a homebrew spectrum analyzer (based on an existing project) and while doing so, I used the Open Bench Logic Sniffer to test my logic board. I have documented my attempts here; the Logic Analyzer part starts around minute 21. The video makes most sense in conjunction with the second video, […]
Bus Pirate v3.8 free PCB build
Olivier Chatelain posted picture of his free Bus Pirate v3.8 PCB build. The Bus Pirate is an open source hacker multi-tool that talks to electronic stuff. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB […]
Bus Pirate v3.8 free PCB build
Chris McKernan tweeted picture of his free Bus Pirate v3.8 PCB build. The Bus Pirate is an open source hacker multi-tool that talks to electronic stuff. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free […]
@tymkrs MorePi Me v1 Pi shift register board
Charles Douvier blogged about his MorePi Me he won in a contest: I unpacked the board and soldered it all together. Not a lot to say about it because it’s just a board, four DIP sockets/74HC595′s a couple connectors and 3 resistors. I like that they included sockets; I would have added them myself but […]
USB RGB color changer free PCB build
Randy Ledyard built a free USB RGB Color Changer PCB. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer.
xQFP80 +65 Protoboard free PCB build
Harshad Italiya sent us a picture of his free xQFP80 +65 Protoboard PCB build: Thank you Dangerous Prototypes your free PCB comes to rescue me and I did my first prototype on this PCB. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you […]
Superprobe free PCB build
Paco sent us a picture of his free Superprobe PCB build. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer. Via the contact form.
Bus Pirate v3.8 free PCB build
Andrew Rohne blogged about his free Bus Pirate v3.8 PCB build. The Bus Pirate is an open source hacker multi-tool that talks to electronic stuff. If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer. Get […]