h4nd 5,728 Report post Posted June 27 Add a amplifier? https://learn.adafruit.com/adafruit-max31865-rtd-pt100-amplifier/arduino-code?view=all Quote Share this post Link to post Share on other sites
NickJ 3,495 Report post Posted June 27 25 minutes ago, h4nd said: Add a amplifier? https://learn.adafruit.com/adafruit-max31865-rtd-pt100-amplifier/arduino-code?view=all Yes, preferred option is analogue at this stage as they are all free pins, if I put a screen into play it will chew up the bulk of the digi ports. Unless i'm missing fancy tricks? Quote Share this post Link to post Share on other sites
h4nd 5,728 Report post Posted June 28 Oops, tho SDI can support multiple devices. Edit, analogue amp here: https://www.aliexpress.com/item/32965912818.htm $34 for 2x or here https://www.aliexpress.com/item/32875383430.html @NickJ 1 Quote Share this post Link to post Share on other sites
NickJ 3,495 Report post Posted June 28 Just now, h4nd said: Oops, tho SDI can support multiple devices. Edit, analogue amp here: https://www.aliexpress.com/item/32965912818.htm $34 for 2x or here https://www.aliexpress.com/item/32875383430.html @NickJ Perfect! I'll put that in my build list, trying to plan this entirely so I can plug it all together over a weekend, not in the mood for development on my own projects right now! 1 Quote Share this post Link to post Share on other sites
Willdat? 3,545 Report post Posted July 31 Year 12s project to make a clock that re-draws the time every minute - it's upside down, but 15:10 is what it's writing... 4 1 1 Quote Share this post Link to post Share on other sites
Willdat? 3,545 Report post Posted Tuesday at 22:26 Next version... 3 Quote Share this post Link to post Share on other sites
h4nd 5,728 Report post Posted Wednesday at 08:23 Ship it. It good enough for initial release to market. Quote Share this post Link to post Share on other sites
anglia4 1,516 Report post Posted Wednesday at 20:57 "Beta testing" Nobody knows what it means but its provocative. Gets the people going! 1 1 Quote Share this post Link to post Share on other sites
Ned 4,051 Report post Posted Wednesday at 21:43 i really want to make one now haha. Seems fun! Quote Share this post Link to post Share on other sites
flyingbrick 8,212 Report post Posted Wednesday at 22:04 Needs to be on whiteboard with a duster to erase the writing afterward Quote Share this post Link to post Share on other sites
anglia4 1,516 Report post Posted Wednesday at 22:23 18 minutes ago, flyingbrick said: Needs to be on whiteboard with a duster to erase the writing afterward Immediately, before you can read the time. 1 Quote Share this post Link to post Share on other sites
Willdat? 3,545 Report post Posted Wednesday at 23:12 1 hour ago, flyingbrick said: Needs to be on whiteboard with a duster to erase the writing afterward That's the plan! There will be a seperate arm with a duster that will erase the time each minute. I'm kinda keen on the idea that it only erases the number that changes, but to be honest the code works OK (and is plenty sophisticated for a 16 yo!). Quote Share this post Link to post Share on other sites
Ned 4,051 Report post Posted Wednesday at 23:49 you can add a 4th servo to the device, and spin the marker around 180deg and have an eraser on the end, and trace the same path it wrote for the last number, and write the new one 3 Quote Share this post Link to post Share on other sites
