Thomas Renck is a coder and a maker. He went to Disneyland, saw a bunch of little kids having fun with bubble guns and realized that a bubble blaster is a sure way to measurably improve joy and happiness in life.
Archive for the ‘Micro’ Category
Chad Herbert’s son Daniel was diagnosed with Benign Rolandic Epilepsy in 2014. It’s a type of epilepsy the Epilepsy Foundation says accounts for about 15 percent of all Epilepsies in children and the good news is that most children grow out of it.
The bad news is that Daniel’s most affected by his condition at night or early morning while he sleeps. That’s why Chad invested in a sleep monitor/alarm for his bed that detects when he’s having a full tonic-clonic seizure. (more…)
Marco Mauro is a physicist currently employed as Scientific Coordinator at Novaetech, the first Spin-off Company of the National Institute for Astrophysics (INAF) in Italy. He shared with us all the info about a project he’s been working on and based on Arduino Micro.
May I introduce my second ARDUINO-project with own pcb. With the pcb I am able to drive seven brushless pumps(with integrated electronics). The “problem” with such kind of pumps is that they don’t accept unfiltered pwm-signals as supply voltage. So I created a circuit where the pwm-signals of an ARDUINO-micro are level-shifted to 12V with a darlington array and afterwards filtered with a 1 uF ceramic capacitor and a 730 Ohm resistor (low pass filter). The signals are then led into the adjust-pins of seven “lm317″s. To work properly I needed to connect the adjust-pins also with 2500 Ohm resistors to gnd, but I found out that with two l293d instead of the used TDP62783 (darlington array) these resistors are not needed, but different resistor and capacitor values for adequate filtering!
The pums also have tacho signals which I connected via schottky-diodes to the ARDUINO (inputs with pullup). With the tacho-signals I am able to find out if pumps are stuck, are sucking air or are not connected.
Additionally I added one ACS712-05B current sensor (which measures the entire current of the circuit) that could be used to find out if pumps that don’t have tacho-signals are working properly. At the moment it is not used.
Besides that I integrated a lm386 audio-amp used to amplify the signal of an electret-mic to a level that is suitable for the ATEMGA’s ADC.
As the first project for the pcb I created a fountain consisting of a shortened wine barrel, seven brushless pumps, a pushbutton with led and pebbles (s. video).
There are seven animation-modes which can be selected via the pushbutton (the selected mode is stored in eeprom).
The speed of the pumps is checked permanently during operation.
The average power consumption is ~20W and max. consumption is 30W.
One of the pleasures of watching TV depends on the use of a remote control that allows you to change channels from where you are. In the tutorial of this week, Kristoffer made an add-on to a previous lesson teaching us how to control a computer with a remote control like the one of your TV using Arduino Micro, IR-sensor. The add-on is a custom and colourful 3d-printed case created with Freecad and Materia 101.
“Earth Partitions” installation by artist Melik Ohanian was exhibited at the Centre d’Art Contemporain à Sète in France and it’s composed by two synchronized videos with a dancer and a seismogram, the second being “written” by the first.
The dancer with two controllers in the hands was asked to “translate” into corporal expression and movements what he saw in a seismogram of an earthquake . His movements were consequently “translated back” to a seismogram using a device. Both the mime and the seismograph were filmed at the same time and both were then broadcasted simultaneously on two different screens during the exhibition. (more…)
Arduino user Jubeso submitted to our blog an instructable explaining the 10 steps to build an input device for gaming.
The Gravity Touch bluetooth glove is specifically designed to interact with augmented reality glasses like the Google Glass, Meta, Moverio BT or with the VR headsets like Oculus Rift, Samsung Gear VR, vrAse, Durovis Dive: (more…)
Instructables user Beaconsfield posted a great project of a suit controlled by Arduino Micro, lighting up EL wires when the wearer starts to walk and lights them up completely when the wearer runs or dances:
Most of the time EL wire is used as is, with manual on/off control. However, I wanted to control it with an Arduino, so it would react to results from a sensor. This motion-activated suit flashes when the wearer starts to walk and lights up completely when the wearer runs. Perfect for those late-night runs! (or dance parties – it lights up when the wearer moves, and this includes dancing) (more…)