Very basic obstacle avoidance robot that I used to introduce my 9 yo nephew and 7 yo niece to robotics...
Project tutorial by Jeremie
A walking insect looking thing made from leftovers.
Connect a rotary dial telephone from the 80s to a cheap cellphone with an Arduino.
Project showcase by Jeremie
We present you the radar we created in the MicroLab lab. This radar uses 2 ultrasonic sensors and 1 motor moving continuously 360 degrees.
Project showcase by MicroLab Greece
A tutorial for beginners for making a memory game with an arduino and leds
A model of neuronal functioning & synaptic modification allow replications of drives, behaviors, affects & learning (Operant Conditioning).
Project showcase by Ondaweb
And I now finally have a good example of how to use interrupts. Thanks for that!
Hi Andy354, Yes, it's only purpose is to pull the pin to low when it's on input. I always put one in case some magnetic field starts inducing current on my circuit.
Please post your escape the room game somewhere when you're done. I'd love to see it.
I think you're right about the 9v battery being a little weak. The Arduino itself draw around 50mA to do it's thing and the servos draw 100mA each when idle. So that's fine on a battery that does 500mA or so. But the servos can draw a lot of power when they start. And then the battery will struggle a little. You might be able to counter that by putting a small capacitor in parallel between the positive and the negative of each servo.
I tried to play with 9v batteries but got frustrated because that's a common problem.
A little battery pack and 4 AA batteries have a much better power output.
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