2AgustinNunez's instructables
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- AgustinNunez followed GiulianoP5
- AgustinNunez commented on AgustinNunez's instructable HeliosCap: Hard Drive Sun Tracker Heliostat for Fixed Telescope (Part 1)
- AgustinNunez followed KrešimirT and kiwironnie
- AgustinNunez commented on AgustinNunez's instructable HeliosCap: Hard Drive Sun Tracker Heliostat for Fixed Telescope (Part 1)
View Instructable »Thanks for your comment. I really miss Scientific American diy articles too. I promise I will look for that article. I was always looking for a way to detect cosmic rays at the high summit of our observatory and now it is possible to record them with an image sensor. What a great idea! Thanks!
- AgustinNunez's instructable HeliosCap: Hard Drive Sun Tracker Heliostat for Fixed Telescope (Part 1)'s weekly stats:
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- AgustinNunez's instructable PoWeR Your 3D Printer Wire Reinforcement for CR-10, Tevo Tornado, Anet Like's weekly stats:
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- AgustinNunez commented on AgustinNunez's instructable 3D Printer Wire Reinforment for CR-10, Tevo Tornado, Anet LikeView Instructable »
Thanks! very rewarding comment. It's my 1st instructable. I did not think was a worthing candidate for a contest, it is so simple... Which contest should I apply? any advice? thanks again.
- AgustinNunez enrolled in Robots Class
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- AgustinNunez enrolled in Rockets Class
- AgustinNunez commented on ehsmaes's instructable Motorize IoT With ESP8266View Instructable »
Seems your patches are ok. How do you power the shield? Which is your stepper? When I did bridge Vs and Vss on L293dd (what actually connect Vmotor and Vin) to both Enable pins I assumed that power supply is sufficient to power both, ESP & stepper. Don't know in your case, but if ESP does not work when connected, seems a power issue. I supose you have double check that D1 & D2 are connected to IN2 and IN4 only.
- AgustinNunez made the instructable Motorize IoT With ESP8266View Instructable »
Done and working. Images worth more than words.In 3 steps: 1st remove two 102 resistors and "=4v" ic. 2nd on L293DD bridge pin 1 with 20, and 10 with 11, as 10 and 20 are both connected to Vm.3rd reuse the lower pads of removed resistors, as they are already connected to D1 and D2, wiring Pin 2(l293dd) with left resistor lower pad (D1) and Pin3(l293dd) with right resistor lower pad (D2).With this patch in place, the mod is hidden below NodeMCU so the result is safe.The final connections scheme is like attached table
- AgustinNunez commented on ehsmaes's instructable Motorize IoT With ESP8266View Instructable »
Thanks Ehsmaes, Rudi48 & Grifter2 for your investigation, I lost 2 days testing different motors, ESP's and Shield configurations trying to drive a NEMA Stepper, finding weird signals at the Oscilloscope, thinking problems was me. My question is which resistors to remove. Rudi48 says 2nd and 5th, but starting from left or right? I guess are the ones with marking 102. I understand that one should also remove the 6pin little ic (marking =4v) that I couldn't find ist datasheet and was very suspictious to lower A+ / A- current. I don't know how to warn buyers that selling shops still advertise this Shield as capable of driving Steppers motors while is not (at least the version is being offered right now everywhere.
They are just a magnet and coil.. it could be used for steering the folded mirror(platter) and even apply some real time adaptive optics to correct for seeing ;-) ...