Teacup_Firmware
SunriseLight
Teacup_Firmware | SunriseLight | |
---|---|---|
19 | 29 | |
303 | 5 | |
- | - | |
0.0 | 0.0 | |
8 months ago | about 3 years ago | |
G-code | C | |
GNU General Public License v3.0 only | - |
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Teacup_Firmware
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Digraphs and Trigraphs
Ooh another fun one you may be interested in is how I wrote Teacup's config handling - the user has to provide a config.h with various macros defining their machine setup, and then multiple separate parts of the codebase redefine those macros and re-include the file to build various structures and constants at compile-time
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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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How is max step rate calculated for stepper motor libraries
Teacup can go pretty fast too, I think I've seen it clocked at 48k @ 20MHz although that may have been across 4 motors at once.
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Arduino UNO ADC using Embedded C
See here and here for an example from my ESC project, or this example from Teacup
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best Microcontroller for fast stepper motors?
https://www.airspayce.com/mikem/arduino/AccelStepper/classAccelStepper.html says "The fastest motor speed that can be reliably supported is about 4000 steps per second at a clock frequency of 16 MHz on Arduino" which is pretty poor - teacup can hit something like 10× that when controlling 4 steppers, and also comes with a non-blocking state machine based gcode parser ;)
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15 steppers on a Mega?
Teacup had decent performance last time I checked, but it's more a complete firmware project rather than a library.
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Total beginner, want to control two NEMA 17 stepper motors via mathematical function.
That's hard enough just with linear acceleration let alone complex functions - might be worth converting it to line segments host-side and just streaming basic gcode to a 3D printer firmware over the serial port.
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Driving a stepper motor faster using AccelStepper
Last time I checked, Teacup can do something like 40kHz on an atmega - might be worth having a play with that?
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Help. Stepper Motor not spinning when I increase the speed
AccelStepper may interest you, and I think Teacup can go even faster.
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Just updated to the latest firmware, Can I change acceleration/jerk/etc on the fly now? Middle of a print?
The latest what? Teacup? Marlin? Aprinter? Repetier? GRBL? Something else?
SunriseLight
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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.
What are some alternatives?
grbl - An open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight Arduino
ESC - Electronic Speed Controller for DC brushed motors on R/C cars and robots
AccelStepper - Fork of AccelStepper
ultrasonic-poc - Ultrasonic proof of concept
Marlin - Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
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.
Smoothieware - Modular, opensource, high performance G-code interpreter and CNC controller written in Object-Oriented C++
arduino-nRF5 - Arduino Core for Nordic Semiconductor nRF5 based boards
aprinter - 3D printer firmware written in C++
SpeedyStepper - Stepper motor control library for Arduino
Repetier-Firmware - Firmware for Arduino based RepRap 3D printer.