Category: Interface

If your application needs a controller with display interface and a network connectivity, then you need to think about using 4Duino from 4D Systems, a 2.4" TFT LCD IoT display module. 4Duino key features 4Duino has ATmega32U4, a 8-bit MCU from Atmel, which is the same...

Lukas Fassler from Soldernerd shares his experience designing a bi-directional voltage level translator and manufacturing the board with DirtyPCBs. While most of my microcontroller designs run on 3.3 volts there is still the occasional 5 volt design. Or I do something with an...

Giovanni Carrera designed a circuit that accepts input voltage from about 20mV to 5V or a current of 4 to 20 mA and converts it to a isolated frequency signal. A voltage to frequency converter can realize an opto-isolated analog input for Arduino or other microcontroller systems....

Loren Siebert @ ti.com discuss about how to interface signals that have a reference voltage that isn't 0V while preserving the DC information. Many signal paths are direct current (DC)-coupled, and this can lead to challenges when different portions of the signal path require...

SpritesMods has a 5-part write-up that shows how to add wireless connectivity to a Fluke 15B+ digital multimeter All in all, I feel like I have succesfully diversified my multimeter assortment. I have a Fluke 17B I can use for daily work so I can enjoy quick continuity testing and...

The Module is based on The MCP2200, which is a USB-to-UART serial converter which enables USB connectivity in application that have a UART interface. The device reduces external components by integrating the USB termination resistors. The MCP2200 also has 256-bytes of integrated user...

moamindustries.com hacked an Omron RS8 blood pressure cuff by adding a UART interface to it. As part of a prototype developed 12 months ago I was tasked with reading measurements from a blood pressure cuff [sphygmomanometer] in real time. Not surprisingly there are no consumer level...

Moshe Gerstanhaber @ edn.com provides an simple ADC interface using instrumentation amplifier IC. Real-world measurement requires the extraction of weak signals from noisy sources. High common-mode voltages are often present even in differential measurements. The usual approach to...