Today Hackaday announce the 5 top winners! SatNOGs wins the 2014 Hackaday Prize: The Grand Prize winner of the 2014 Hackaday Prize is SatNOGs. The project is a thrilling example of the benefits of a connected world. It opens up the use of satellite data to a much wider range of humanity by providing plans to build […]
Author Archives: DP
Tektronix RSA306 IF frequency verification
KF5OBS writes: After posting the teardown video of the Tektronix RSA306 USB 3.0 Spectrum Analyzer on my YouTube channel, someone asked me to verify that the IF sampled by the Linear Technology 14-Bit / 125 Msps ADC is really at 140 MHz. Using the Tektronix MDO4104B-6 and a passive RF probe, I gladly did so.
Network control with IQRF DCTRs
Ondřej Karas of DoItWireless writes: Remote control of various devices and data collection in a wireless mesh network could be a very easy thing. This video explains DPA protocol, how to send DPA commands, how to work with IDE Macros and how to collect data through Fast Response Commands.
DIY lithium battery charger shield for Arduino
Abdulgafur Mujdeci over at Electro-Labs has published a new project a DIY lithium battery charger shield for Arduino: In this project, we are building a programmable single/multi cell lithium battery charger shield for Arduino. The shield provides LCD and button interface which let the user set the battery cut-off voltage from 2V to 10V and charge current from […]
Infrared LED matrix
Jaanus made this infrared LED matrix project: I have lately been doing bunch of different LED matrices. One of the most interesting one is an infrared matrix, made out of old Soviet infrared light that was used for data transmission (if I remember correctly – in studios). We repurposed it to LED screen that is visible […]
Demystifying hardware security with the Bus Pirate
Alain Iamburg over at FishNet Security writes: Welcome to Part III of this series on hardware security. In Part II we explored passive data captures of EEPROM read operations over the SPI bus. In this installment, we will be looking at techniques for actively probing and communicating with such chips. Memory chips can contain interesting data. […]
Cat protector project
Here’s a cat protector project from LuckyResistor. Check out the project page from prototype to the final device: if you own a cat, you know even if your cat is well brought-up, laws are only valid as long you are at home or even in the same room. the goal of this project was to create […]
ESP8266 posible breadboard interface
Soynerdito has been working on a small hardware adapter for ESP8266-WIFI Uart module: Idea is to provide a small board to allow connecting the ESP8266 ver ESP02 to a breadboard. It is kept small so the price is cheap. A small batch was ordered to oshpark and waiting for order to arrive to see if the idea works. […]
TESLA TRUCK, a mobile maker space for the masses
Tesla Truck, a mobile-maker space for the masses, is having a indiegogo campaign to help them equip a hands-on classes and workshops, where students, teachers, and makers can teach, learn, create, and innovate: Whether you’re a school that wants a semester long, hands-on STEM program or an aspiring maker who wants access to workshops and […]
Seeed Studio Pre-Christmas Sale — Save up to 50% OFF
Seeed’s Pre-Christmas promotion begins! The discount season will last from 10th to 24th Nov., amazing discount (up to 50%) is waiting for you. Get discount Pre-Christmas open hardware, discount Groves and Xadow wearable modules, discount Arduino Compatible Board and Shields ,discount Raspberry Pi and accessories, discount Flexible LED Trips and Rainbow Cube ,get what you […]
#FreePCB via Twitter to 2 random RTs
Every Tuesday we give away two coupons for the free PCB drawer via Twitter. This post was announced on Twitter, and in 24 hours we’ll send coupon codes to two random retweeters. Don’t forget there’s free PCBs three times a every week: Hate Twitter and Facebook? Free PCB Sunday is the classic PCB giveaway. Catch […]
ATX breakout board bench power supply back in stock
The ATX breakout board bench power supply is back in stock at Seeed Studio. This board recycles an old computer PSU into a handy bench tool with 3.3/5/12/-12 volt supplies. You can get one for $14 at Seeed Studio. You can also get a Sick of Beige case for your ATX breakout board for $4 […]
Penang Mini Maker Faire set for November 15-16, 2014
Exciting news for all makers that Malaysia will have its very first Mini Maker Faire this year on 15-16th November 2014 at SPICE, Penang ! Mark your calendar!
Introducing CT-UNO, Cytron version of Arduino UNO
Vincent informs us of this Arduino compatible CT-UNO, the Cytron version of Arduino UNO: The CT-UNO combines the simplicity of the UNO’s Optiboot bootloader (which load program faster), the stability of the FTDI and the R3 shield compatibility of the latest Arduino UNO R3. Besides, we know many are using Android phone which comes with USB micro-B cable […]
Building a better breakout board for ATX PSUs
Francesco Truzzi made a ATX Breakout board clone: These are the features I packed into it It has a 24-pin ATX connector Voltage lines are all broken out individually on binding posts LM317-based voltage regulator. Using a 300 ohm resistor and a 2K ohm potentiometer, voltage range is 1.25-9V 2 USB ports based on the TPS2513 […]
Introducing RFToy, an Arduino-compatible gadget for radio frequency modules
Ray Wang from RaysHobby has informed us of his latest open-source project called RFToy: It’s an Arduino-compatible microcontroller board for interfacing with radio frequency (RF) modules, such as the popular 433/315MHz transmitter/receiver, and the nRF24L01 transceiver. Recently, while browsing a tech forum, I stumbled upon a discussion about 카지노사이트, which caught my attention as it highlighted […]
Free PCB Sunday: Pick your PCB
We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion board service. This week two random commenters will […]
App note: LED array drivers
Here are STMicroelectronics’ portfolio of LED array drivers(PDF). The use of LEDs in applications like displays, information and advertising panels, signs, traffic signals, automotive lighting and architectural lighting is becoming more and more common. LED array drivers, with accurate constant current regulation and embedded serial interfaces, offers a solution that is suitable for most of […]
App note: Using the STM6600, STM6601 smart push-button on/off controller
An app note(PDF) on smart on/off controller and voltage monitoring chip from STMicroelectronics. These devices allow easy and safe control of applications run with one or two push-buttons by securely starting or powering down a system and also resetting the processor or disabling power in case of a non-responding application (e.g. code in a dead […]
App note: Slew rate verification for wideband amplifiers
Linear Slew rate verification for wideband amplifiers from Linear, an app note (PDF) : Slew rate defines an amplifier’s maximum rate of output excursion. This specification sets limits on undistorted bandwidth, an important capability in A/D driver applications. Slew rate also influences achievable performance in D/A output stages, filters, video amplification and data acquisition. Because of its importance, amplifier slew […]