The more belt teeth there are engaged the longer the belt will last and it also allows for more torque to be applied. But 6mm 2GT belts have about 40 pounds tensile strength and we are asking them to

I've had what I consider a high failure rate with the D1 mini Pro modules. Now I see they are going for $5 a unit delivered. I stripped the IPEX U.FL SMD socket jack RF coaxial connectors (3 X 3mm) fr

Not exactly ...

May want to study ESP32 Power Supply, Electrical Characteristics and Module/Peripheral Schematics. There may be a need for more filtering. The NCP1117 caps may need attention. "The output ripple will

If you wire the M0, M1, M2 and M3 driver pins for SPI control per the pinmap; // Axis1 RA/Azm step/dir driver #define Axis1_EN 12 // Enable [must be low at boot 12] #define Axis1_M0 32 // Microstep Mo

This is by Roman Hujer. See his OnStep for EQ6.

#neq6 #eq6

Think that's smart. Batteries will give a circuit all the amperage they contain if asked. That's why you can weld things together with them. I've been reading up on the ESP32 and it's designed to need

A Hall sensor is activated by a permanent magnet that's mounted on the worm axis. Other sensors can be used like an eccentric attached to the worm axle that closes and opens a switch. Celestron used t

#pec #encoders

In 2007 Pololu Electronics put the Allegro A4988 IC on a break out PCB. There is no particular characteristic if the IC that dictated the output pin orientation., but the order they used, B-, B+, A+ &

There are 2 voltage regulators on the D1 R32. The first is a MP1482 with 5V output, max input 18V. The second is a NCP1117 3.3V output max input 20V. so you are wise to keep the power in at 12V. The s

You probably know by now that your drivers are reversed. They should be connected this way.

#dob #bluepill

The 66 cent solution. ESP01 Programmer USB/UART Adapter. A buck more from Jeff Bezos with Prime. I've tried to program through the Teensy and ESP32 w/o success. A lot less pain with the adapter. Use t

I picked up this LiFePo 12V 12AH for $60 plus $30 for the charger. from Amazon for the boat's radio and instruments. Compared to the 8AH garden tractor batteries I'd been using it's a feather. The lea

These are the "officially" recognized registered jacks. No 42 and no 22, although there is a so-called 22 that is a variant of the "RJ9" handset plug. Of course the RJ9 is not a RJ either. Didn't have

The LV8729 will support on the fly switching, at least you can can set microstepping "OFF" during goto slews. Given you low microstepping rates you can expect slews of only 0.25 of arc/sec. tracking r

Yes, the regulator is where I'd start. The units based on MP1584EN high frequency step-down switching regulator have proven to be extremely reliable. I used over a hundred of them on the MiniPCB1 and

There are what? 64 -128 possible ways to connect an 8 wire stepper and maybe 16 that will drive it. You have to approach the beast with logic. My advice is to replace the drives with bipolar steppers.

And runs the Configuration Generator just fine. Long time since WordStar and Lotus 1-2-3.

Even if you do need to adjust it, the easiest way is to reduce the voltage until the LED on the regulator module just goes out and increase slowly from that point to 5V.

#dob #bluepill

Here's a quality 30V HP printer PS, 99 cents. Or a 12VDC 3A for $5.

#dob #bluepill