Input Voltage: 24 V (18 – 36V) Output Voltage: 12V Regulated (+/-3% over line / load / temp.) Output Power: 4.2 A / 50 W Output Efficiency: Up to 88% Input-to-Output Isolation: 2250 V Output Voltage Trim: Vout +10/-20% Dimensions: 0.87” (l) x 0.65” (w) x 0.265” (h) 22 mm (l) x 16.5 mm (w) …
Multi-band antenna 2J301 offers several properties for which it´s worth to consider its usage in your devices. Decent gain, good VSWR values, small dimensions, resistance to outdoor conditions and a simple mount method are probably basic features, which we´d expect from external antennas for the GSM/UMTS, PCS bands. Antenna 2J301M/SMA from company 2J provides all …
High-quality GSM/3G signal directly to your device Read More »
Super Capacitors have become more popular over the past 5 years and are beginning to replace batteries in some applications. Charging a super cap can be tricky especially if you want to avoid damaging it. Read More: How to Charge a Super Capacitor with a Solar Panel
Screens speak of color in terms of 3 channels: Red, Green and Blue. Humans tend to think of colors in 3 channels too, but the channels that seem more natural usually are Hue, Saturation and Brightness. Here is an arduino color library so you too can specify colors by their hue! We use this code …
Push-buttons resistant to dust and water, moreover with the well-visible LED backlight, will manage even rough handling. If you have an application, where you need sturdy push-buttons and ideally even with backlight, then the Schuster MSM19 may be the right for you. Dust- and water-proof push-buttons can be advantageous not only in an expressly demanding …
Resistant and irresistibly beautiful push-buttons Schurter MSM 19 Read More »
An application note from Microchip: Interfacing a 4×4 Matrix keypad with an 8-Bit GPIO expander This application note discusses interfacing a 4×4 matrix keypad with MCP23X08 8-Bit GPIO Expander. This application note references the MCP23X08/17 GPIO Expander Keypad/LCD Demo Board (GPIODM-KPLCD). GPIO Expanders provide easy I/O expansion using standard serial interfaces such as I2C and SPI. …
Interfacing a 4×4 Matrix keypad with an 8-Bit GPIO expander Read More »
You can use an LED as a photoelectric sensor. A previous Design Idea shows that such a switch is highly power-efficient, consuming almost no power (Reference 1). However, you cannot adjust that configuration to switch at the desired light intensity. You can adjust the circuit in this Design Idea to any threshold level of light …
Adjust power-efficient LED switch to any light intensity Read More »
What is the Arno Shield? It’s a follow up to the Arno board for those that prefer to work with a shield. When you’ve completed all the projects that are in the included book, you can pop the shield off your Arduino compatible board and start building your project. It’s also a great way to …
If you have used LCDs in projects before you have realized that to use the backlight on a LCD display you need large positive and negative voltages. This circuit will help you create the voltages you need from a simple 2.5V to 6V input. I chose this circuit since many of my projects run off …
As PCB part placements get denser, it’s necessary to add breakaway panels that add additional board material (edge rails) to accommodate the assembly process. Two parallel edges are required for a PCB to be processed in the SMT line. This is to prevent skewing through the conveyor system. Also, all odd shaped PCB’s must have …
