SunriseLight
RGB Color Temperature Light with Bluetooth Control (by triffid)
ultrasonic-poc
Ultrasonic proof of concept (by triffid)
SunriseLight | ultrasonic-poc | |
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29 | 14 | |
5 | 4 | |
- | - | |
0.0 | 0.0 | |
about 3 years ago | almost 3 years ago | |
C | C | |
- | - |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
SunriseLight
Posts with mentions or reviews of SunriseLight.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-06-29.
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Conversion from tm struct and String into time_t
Redshift has code to calculate that locally which I use in my sunrise light project
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Advice to an engineering student
Since then I've made lots of things like audio amplifiers and effects, motor controllers, 3d printer controllers and firmware (and subsequently smoothieboard), muscle stimulators, bluetooth LED strip controllers, etc
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[Tertiary Level Engineering : PCB Board Design] I've converted the following schematic into board design but I do not know how to go about the layout design. Could someone show me an example PCB layout design preferably on Eagle software? Thank you.
Here's a bluetooth RGB strip controller I made a couple years ago if you want an example.
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In your opinion, does a masters in EE or an FE certification hold more weight?
hackaday.com has a zillion links to examples; here's one two three four of mine and I've also got a laundry list of companies I've helped but whose technical details I can't legally publish (note that I've assisted many but not all of the companies in that link)
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How do you build circuits?
eg for this project my available inputs were intermittent 12v power, bluetooth, and the current time and location; and the desired output was 3× high current low-side switches that produced 12v RGB PWM corresponding to the colour temperature and brightness of the sky - so we need a bluetooth microcontroller, battery backup to keep time when 12v is absent, some battery management which wanted 5v in, a 12v buck to feed it, some MOSFETs, and redshift or similar code to plug into things.
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How can I use an Arduino board to control LEDs so it imitates the sunlight color temperature throughout the day?
Here's one I made earlier although it targets NRF52 and doesn't use Arduino libraries.
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Control RGBW led strip with ESP
I've got a similar project here, and most of the complication is for battery management - the actual LED strip drive is even simpler than yours because I chose MOSFETs that work nicely with 3v3 gate voltage :P
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Libraries
If you're curious here's a couple of my AVR projects (not using Arduino libraries at all), and here's an NRF52 one
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Half a million subscribers! Enroll here to receive your special flair!
I guess my Sunrise Light project could have been built on Arduino's libraries since an NRF52 core exists, but I didn't do that…
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Seeeduino Xiao
For example, this old project of mine uses an NRF52832 (which is substantially similar to the '840, just missing USB) and it offers several services and characteristics including a battery level service, a DFU service, and a custom service for actually controlling it.
ultrasonic-poc
Posts with mentions or reviews of ultrasonic-poc.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-08.
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Using micros() as a source of random numbers
That's why I don't use them for anything fancy
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How to drive a ultrasonic transducer and receiver and get wave output
Heh, ultrasonic phase offset can be done with an Arduino's analog comparator (NOT the ADC which is too slow) - here's one I prepared earlier
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In your opinion, does a masters in EE or an FE certification hold more weight?
hackaday.com has a zillion links to examples; here's one two three four of mine and I've also got a laundry list of companies I've helped but whose technical details I can't legally publish (note that I've assisted many but not all of the companies in that link)
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Can I measure distance in mm size with HCSR04
HC-SR04 can't, but the transducers on it can - here's a proof-of-concept I threw together a while ago to play with them, although you may want a capacitor in series with R6 if you want it to work over longer distances than ~10cm or so
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Single-supply bandpass filter is clipping
PS: https://github.com/triffid/ultrasonic-poc may interest you ;)
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Libraries
If you're curious here's a couple of my AVR projects (not using Arduino libraries at all), and here's an NRF52 one
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Since learning that ChatGPT can write Arduino sketches, it has taken some of the challenge of the hobby away for me, anyone else experiencing this?
ChatGPT often gets stuff wrong and likely can't handle more advanced programming techniques (eg this sort of thing), so it's only going to be useful for basic stuff and shouldn't be used beyond your ability to critically analyze or debug code.
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Half a million subscribers! Enroll here to receive your special flair!
Does this proof of concept where I get absurd precision (at short range) from a couple ultrasonic transducers salvaged from a HC-SR04 and a few resistors count?
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Resources for Baremetal Arduino: A curious complete beginner
Here's a random proof-of-concept I threw together a while ago for super precise ultrasonic wind speed measurement (or very short distances) - it uses the analog comparator plugged into timer input compare for phase analysis, which is where the precision comes from.
- Error with " 'Calibration' was not declared in this scope " not working in my code, Can someone help me.
What are some alternatives?
When comparing SunriseLight and ultrasonic-poc you can also consider the following projects:
ESC - Electronic Speed Controller for DC brushed motors on R/C cars and robots
Teacup_Firmware - Firmware for RepRap and other 3D printers
mbed-os - Arm Mbed OS is a platform operating system designed for the internet of things
redshift - Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.
QingStation - A compact weather station.
arduino-nRF5 - Arduino Core for Nordic Semiconductor nRF5 based boards
Smoothieware - Modular, opensource, high performance G-code interpreter and CNC controller written in Object-Oriented C++