electronic lead screw

greenail

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Aug 31, 2018
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139
Fantastic Greenail look FWD to end result.
But will need info like how the tablet connects to the control board etc. Marvellous!
U have taken ELS into 21st century with cream on top! Cheers:)
Agree re no topslide extra stabilty too, esp on my old clunker.

i suppose the entire lines of offset & incremental feed & Total feed decimal places will be truncated on the display to
not dazzle the user?

the esp32 has wifi builtin as well as bluetooth, it connects via websockets for quick updates. The page is "serverless" and you just plug in the IP address of the ELS and it connects.

decimal places is easy to clean up, but as with everything there are always lots of easy fixes...
 

Qtron

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Oct 19, 2019
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132
Thankyou for your reply - just asking if it is in a usable state- which it must be!
Yes would love to try it :)
is all the info avail, re how to get it into an ESP32, I have never used one, have only prog'd an arduino,
How to wire it all up etc?
 

greenail

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Aug 31, 2018
Messages
139
Thankyou for your reply - just asking if it is in a usable state- which it must be!
Yes would love to try it :)
is all the info avail, re how to get it into an ESP32, I have never used one, have only prog'd an arduino,
How to wire it all up etc?

you can program them just like an arduino with the arduino IDE. you can pick them up all over the web (amazon) for ~$5.

If you want to test create an issue here: https://github.com/jschoch/ESPels/issues and we can work through the documentation. Right now the machine specific settings are compiled in but they can be saved in EEPROM and it would be easier to make changes, I just need a reason (like you testing) to write that code.

The configuration is:

encoder resolution setting
lead screw pitch in mm (everything is in mm but the conversion is easy)
stepper driver microstepping
wifi ssid/password


The wiring in it's simplest form is:

encoder A/B signal pins, power and ground.
stepper step/dir pins+ ground.

Once it is wired up you can go here http://espels.s3-us-west-2.amazonaws.com/index.html and use this to connect to the esp32, or you can run it locally on your network via the source code and node.js https://github.com/jschoch/espELSfrontend.
 
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