39 Results for "soil+sensor"

CHEAPEST MicroController for TINY Robot
.Stack entry by ZaidPirwani
Hi, So, I am looking to buy a few 100 microcontrollers, for really tiny robots - like these: https://hackaday.io/project/2054-tinybot-robot-family-development-board and https://hackaday.io/project/11588-robotics-for-control etc.BUT,...

Gifts for Maker kids?
.Stack entry by brian
Hello! first time commenter here, please be gentleI have 3 boys (9, 11 and 14) who have all asked for various maker type presents this year. The youngest wants Lego Mindstorms, having taken a week long course in the summer at the local rec complex. The...

S11108 Circuit Design Logic
.Stack entry by kimbomc
Hi all, this is my first post and also my first dip into electrical engineering and I wanted to ask if you people have any suggestions on the circuit I have designed. As a background, I'm a Computer Science student so I have no issues if you folks suggest...

Is a 1D Kalman filter suitable to correct clock drift against an external, noisy, cyclical phenomenon?
.Stack entry by Simon Merrett
Bear with. In typical fashion, I've been wanting to do a project for a while, HaD runs a competition for it and I miss the boat. But that's fine. I ran into an issue in a design for a remote, low power sensor device last year which needed to roughly...

Looking for general advice on GPS + GSM mobile device
.Stack entry by krey-c
Hi everyone,I am looking for help with my first arduino project.What I am trying to build: A small (!) board that is in a low power mode unless being woken up by a sensor signal. Then, a GPS module (maybe this one https://www.adafruit.com/products/790)...

40KHz Audio Spike from Light? Or something in ceiling?
.Stack entry by James Newton
So I was teaching this class for UCSD Extension / Sally Ride Science Junior Academy and decided to use a PING sensor with the little robot platform. https://github.com/JamesNewton/AdvancedRoboticsWithJavascript/wiki#week-4-day-1-the-botIt all worked...

Dishwasher water softener
.Stack entry by David H. Bronke
Anyone here familiar with dishwasher repair, or water softeners?I have a Siemens SE64E336EU dishwasher which has a built-in water softener. The controller board died, so I've replaced it with an ESP32-S2, which is working great... but I have no idea...

ESP8266: Differentiate wakeup due to sleep interval or button press
.Stack entry by sayanee
http://www.falstad.com/circuit/circuitjs.html?cct=$+13+0.000005+24.46919322642204+50+5+13%0Ar+224+96+224+144+0+1000%0Ac+224+320+288+320+0+0.000001+-0.0015048369024333041%0As+176+320+208+320+0+1+true%0Ad+224+192+224+240+1+0.805904783%0Aw+224+240+224+304+0%0......

Electronics Assistance Needed -- synchronizing two separate PWM sources
.Stack entry by Starhawk
So I want to build a mechanical television aka a televisor, and a matching camera. I know most of how I want it to work, and I have most of the parts. I need, however, some help with the sync-circuitry end of things.I know that, back when televisors...

|<
<
1
2
3