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Hens Baltesen
Hens Baltesen 51 minutes ago
Only Eagle files? What if I don't have that? What went wrong with good old pdf?
Power supply watchdog for microcontroller systems
Ian Lockhart
Ian Lockhart 15 hours ago
Anders, Will the newer PIC run the old firmwares(builds) without changes ?  
HPDisk - An SD-based disk emulator for GPIB instruments and computers
Johann Stornig
Johann Stornig 1 day ago
Question: could the circuit diagram also be published as an EAGLE file or similar? Then it would be easier to design a customized circuit board
Remake Elektor weather station
kyros
kyros 1 day ago
Specifications 1. Microcontroller ATmega328 2. 3-AXIS Digital Accelerometer ADXL335 3. Lipo Battery with Charging Board Module 4. 433MHz Wireless Remote Control Transmitter 5. Compact Power Module - voltage input (AC: 90 ~ 264V) the system is based on the ADXL335 accelerometer that has a detection range of ±3 g. It can measure the static acceleration due to gravity , as well as dynamic acceleration resulting from motion, shock, or vibration. A metal ring mounted on the sensor ADXL335 contains perimeter loose steel spheres and magnifies the weak vibrations of the building creating a more intense shock to the sensor the appliance must be plugged in in standby mode in a room outlet the LED will be green (standby mode) Ability to enable / disable device with Power switch the vibration of the building will turn on the device and it will sound alarm the LED will turn red will also activate wireless receivers alarms in other rooms at frequency 433Mhz when the building stops vibrating the audible alarm will stop the LED will turn yellow and the device will return to standby mode the LED will remain yellow (as a memory) reminding that there has been a vibration if we want to restore the entire system to its original state we ,press the reset button details and code https://sites.google.com/view/electrodevelo/home-page/education-projects/earthquake-alarm  
Earthquake Alarm System
BreedJ
BreedJ 2 days ago
Here is a similar project. It was based on this project. The costs are about the same. It uses a 8318.http://www.rc-cam.com/forum/index.php?/topic/4139-diy-rf-power-vswr-meter-low-cost/
RF Power Meter with 1MHz-10GHz bandwidth and 55dB dynamic range (160193)