4
votes
Accepted
Cheapest single computer board with Wi-Fi and audio
I'm looking for something similar to this myself; currently I'm using a CHIP from NextThingCo; you'd have to write the software yourself for what you want, but it runs standard linux.
Wi-Fi ...
- 56
3
votes
Cheapest single computer board with Wi-Fi and audio
Your best bet is one of the Rasbperry PI 2 or 3 is $35
The PI 3 does actually have built-in wifi, but no WPS button or activity leds. They both have a RJ45 for hard wiring with activity leds.
You ...
- 814
2
votes
What are good LED boards for an Arduino?
Using 3 I/O, you can only charlieplex 6 LEDs. The board would require an I/O expander, which would take up space limiting the area you could place LEDs.
However, a very functional, full color matrix ...
- 255
2
votes
Accepted
Mechanism to close a small gate using Arduino
The thing you you are looking for is called a Linear Actuator http://amzn.to/2uWRIjV
Depending on the strength of linear actuator you get, you might not even need a latch.
You can have the Arduino ...
- 146
2
votes
Accepted
Electronic Deadbolt for Door
I accidentally found the answer to my own question. What I am looking for suddenly happened to appear in my Amazon recommendations (even though I haven't searched for anything like this on Amazon), ...
- 194
2
votes
Programmable Induction Hotplate
As you have shown an Arduino type device in your photo, you may want to consider to explore the world of Arduino controlled PID devices. I have a stand-alone device which consists of a thermocouple ...
- 1,398
2
votes
Accepted
Sending order from ESP32 to Arduino Mega
From what you have asked, It looks quite straightforward to me so I am assuming that you are new to controllers. Apologies otherwise. What you need to do is:
Serially connect both devices (I2C/SPI).
...
- 36
2
votes
Accepted
small size Alternative of raindrop sensor
The sensors shown are simply conductors separated by an insulating space. When water, which conducts electricity slightly when pure (or much better with dissolved ionic substances), bridges the gap, ...
- 276
2
votes
Accepted
Need a blood-pressure measuring module recommendation for arduino
When I hear you ask for a module, I think of an Arduino "Shield" but you dont need one of these. You can connect what you need directly to the board, but it will be easier if you use a breadboard.
...
- 854
1
vote
small size Alternative of raindrop sensor
I made a diy flexible sensor for diaper-free time - not exactly what OP asked but still might be helpful. You can make it smaller with thinner tape and sheet but still probably not comfortable/usable ...
- 111
1
vote
Accepted
Small Form Factor Thermal Camera
AMG8833 is a popular thermal camera which has an accuracy of 2.5 °C (4.5 °F). The benefit is that it's commonly used, and has a pretty decent support. The drawback is its tiny resolution, 8×8 pixels ...
- 394
1
vote
Accepted
Making a WiFi event recorder
Instead of choosing an Arduino board, use an ESP8266 variant which natively supports Arduino sketches. You can use a relay or directly connect a button to the I/O pins and detect whenever a button is ...
- 191
1
vote
Best low cost microcomputer for running Unity app + webcam
There are microcomputers I suggested in another similar question, and unless your cam needs a specific connector you can choose from those:
UP Core - https://up-shop.org/up-core/271-up-core.html
1-4 ...
- 376
1
vote
incremental encoder with added joystick functionality
I used "six axis joystick with rotation" as the search terms and came up with an open-source resource from the UNMND web site. It appeals to me because I like to build stuff and this one is very much ...
- 1,398
1
vote
Accepted
Portable camera with bluetooth or some other wireless technology support
Not Bluetooth, but wifi, therefore it qualifies for "other wireless technology, the "aiball" camera comes in as a candidate. Available on Amazon, as well as a few other locations, it doesn't come in ...
- 1,398
1
vote
Small device with Bluetooth low energy (BLE)
The Raspberry Pi Zero W
It's $10, comes with Bluetooth LE and Wi-Fi onboard, and can be very easily set for use with an I2C sensor. Under full load it draws a only 1.2W, but has enough horses to keep ...
- 1,822
1
vote
Accepted
Hardware components for MESH network with Arduino
Recommendations
There are many different mesh networks I have seen being set up with the Arduino. Here I name just a few of the common ones.
Pinoccio
According to the website,
Field Scouts talk ...
- 208
Only top scored, non community-wiki answers of a minimum length are eligible