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Search results: 386   Output: 71-80
  1. Temperature-indicator and temperature-based products have generated wide interest. There are numerous applications for such devices with many possible solutions, each with its own advantages and disadvantages. This idea discusses a sensor interface ...
  2. One tool that I've been missing at my lab at home is function generator. They tend to be a bit expensive, so I haven't bought one. I thought this might be a good opportunity to try and make one myself. I found a pretty common DDS (direct digital ...
  3. Part 1 Zoltan Gingl Two configurable analog ports allow you to connect many sensor types using two three-input connectors, each of which has a ground pin (Figure 4). One ground pin provides 3.3V power, and the other outputs the buffered reference ...
  4. A precision analog acquisition system fits in your pocket. Zoltan Gingl, University of Szeged, Szeged The circuit in this Design Idea combines a mixed-signal microcontroller, a USB UART (universal asynchronous receiver/transmitter), and a novel ...
  5. Jeff Wilson, STMicroelectronics Use two diodes and two capacitors to generate a negative voltage. This Design Idea describes a circuit employing a small microcontroller-based sensor module with only three connections: 5V dc, an RS-232 transmit-data ...
  6. Tom Au-Yeung and Wilson Tang, Maxim Integrated Products EDN You can make a wireless temps system with two ICs You can use a local temperature sensor and an ASK (amplitude-shift-keying) transmitter/receiver pair to design a simple wireless ...
  7. This project is about building a PC-based temperature and relative humidity logger using the chipKIT Uno32 board and the DHT11 sensor. The project setup requires no additional wires (other than the USB cable) and components; the DHT11 sensor is ...
  8. Economical alternative to original Arduino ethernet shields, allows data rates up to 10 Mbps and is achieved with a traditional assembly components. One of the most interesting shield that you can mount on the Arduino platform is certainly the ...
  9. This is a simple voltage and current meter that uses the Texas Instruments INA219 chip and Texas Instruments MSP430 LaunchPad Development kit . Voltage measurement range is 0 to 26 volts with 4 mV resolution and current measurement range is -4 to ...
  10. Part 1 - Schematic Firmware The entire firmware relies on logical decisions at every step. I wrote the code in a way that the complete code is divided into understandable small functional blocks or functions. Each of these functions is doing ...

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