Board with Ethernet interface able to activate or deactivate up to 2 relays. A simple utility is available to connect and configure the board (network parameters, such as the module’s IP address, default gateway, etc.), a small program to activate / deactivate the monostable, bistable and timed relay from 1 to 65.535 seconds.
It has 2 relay outputs N.O. and N.C. (30 VDC 10 A or 250 VAC 10 A) with relative status LED. Power supply
With its high sensitivity and rapid response times, this kit-based device, utilizing the MQ-3 sensor, accurately detects the quantity of alcohol vapors in the breath, providing timely alerts both visually, through LEDs, and audibly with a sound alarm. When combined with an alarm system, this kit can be used indoors to detect the presence of…
Let’s find out how to make a phone switchboard equipped with all the most advanced features, by using a Raspberry Pi as hardware and Asterisk as software. Part one. The term VoIP, which means “Voice over Internet Protocol”, refers to a group of technologies used to transport voice using the Internet-based IP protocol as…
Using Fishino and Octopus driver, we play a small toy keyboard that will reproduce musical melodies originally born as Nokia ringtones. For many years, electronic keyboards, especially music synthesizers, have had the possibility to play tunes independently, if adequately piloted through the MIDI interface or by reproducing standard format files uploaded from external mass…
Rechargeable LiPo (lithium-polymer) battery with a nominal voltage of 7.4 V and a capacity of 2000 mAh. Discharge capacity: 25C, Balance charge connector: JST-XH, voltage output connector: Deans T, dimensions (mm): 84x34x17, weight: 98 grams. Note: the battery must be charged only and exclusively with specific LiPo chargers. Advantages and drawbacks Go to…
On the construction perspective, the remote control does not present many difficulties, just the obvious ones that appear when working with circuits requiring superficial assembly components. As usual, there is a PCB with double plating where to mount all components.
Let’s substitute our 3D printer’s command panel with a dot-matrix that enables the display of graphics, function icons and animations. We would like to remind you that our 3Drag printer (that prints plastic items of the size of 200x200x200 mm) may be supplied with a command panel, so to locally manage the printing…
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