These devices came on the market to deal with missing steps that mainly affected the DVR8825. They were called "smoothers." As such they sold for about $2. The introduction of the TMC2130 sort of deal

#on-focus

I'd read that as "OFF" for any A4988 Pololu type driver. Beyond ground, logic and motor supply only step and direction pins are used. Driver selection depends to a great extent on the characteristics

#on-focus

Seems everyone in China is selling these. Most are mirror of the standard mounting (Type 2) and the positioning lugs are not the proper distance from the pins for OnStep PCBs. The Adam Tech MTJ-669X1

For some idea of what's involved in assembly of the MaxESP3 and the MiniPCB2, currently the best selling controller kits follow the link.

#EQ5

I will help the "handicapped" and have a soft spot for folks with dead Vixen DD-2/3s or Losmandy 492s. The MiniPCB2 is my favorite controller model for this kind of project. It's compact so there's no

Sounds like you have RJ12s that are designed for fitting under the PCB. I bought a box of 500 for $10 a few years ago and used them in projects. Wasn't until I tried to use them on a OnStep PCB that I

You can purchase braided cable sleeving to neaten things up. I've found that surface mount solder paste in a syringe mages soldering DIN and aircraft connecters is a lot easier. A dab of paste in the

A source I use is old Centronics type printer cables. Good gauge and tinned throughout. Newer cables are OK for data but too light for anything that has to carry current.

The plain vanilla D1 mini is fine without the metal enclosure. I think it is shielded because it uses a 4 cent Zener diode voltage regulator which can be noisy. Lolin apparently decided to go with a 1

On a Windows device ALT & 230 and 234 for Ω. Generally, ceramic caps carry a 3 digit code. Thus a 104 is 10+4 digits or 10000pF = 100nF = 0.1µF. I keep the attachment handy for reference.

First thing to be clear about is all the D1 mini Pros are assembled in China. There seem to be 3-4 basic board layouts. All use the ESP8266 microcontroller, a flash memory IC and a USB-serial interfac

For using the BT HC-05 this is a good reference https://www.gme.cz/data/attachments/dsh.772-148.1.pdf.

Found this on Reddit: Here are my 3.3V and 5V rails with the Torex 150mA and then the exact same board with the AMS1117. Note: With the ME6211 500mA the 3.3V rail dropped 240mV and the 5V had almost n

Brilliant! I'd say break through and original, but it's even more clever than that. You've found inspiration in the MiniPCB designs. Smarter not to re-invent the wheel! The R32 is generally limited to

And you are now the master of your fate. No need to send your mount across the country for questionable/expensive service.

Make sure you have a solid 5V at the ESP8266's power pin.

I don't think so. OnStep is designed for A4988 drivers and their successors, such as the LV8729. The EATAD763 is a carrier for the Torshiba TB6612FNG. The TB6612FNG is designed to replace PWM drivers

I was asked if there is a problem with powering a ESP32S module with both USB and controller power supply simultaneously. Anyone know the answer?

I like the MiniPCB and have sold just under 100 kits, but I feel it's best sought out for its relative ease of assembly, compact size and good processor. Unless you already have a MiniPCB and Teensy a

That cable looks pretty snaggy to me. There are other successful EQ-3 conversions mentioned in the Wiki showcase you may wish to check out.