Rue Mohr
@ruenahcmohr.bsky.social
Rue Mohr, Recreational Technologist. Robotics: Electronics, Programming, Mechanics.
Not retro, but Z80 is the best of all time.
Not retro, but Z80 is the best of all time.
ok, well, here is the analog gyro feeding the adc -> pwm, but my buckboost power supply stopped working and the big mystery is how it worked in the first place.
*sigh* building power converters is kicking my ass again...
*sigh* building power converters is kicking my ass again...
December 15, 2025 at 2:40 AM
ok, well, here is the analog gyro feeding the adc -> pwm, but my buckboost power supply stopped working and the big mystery is how it worked in the first place.
*sigh* building power converters is kicking my ass again...
*sigh* building power converters is kicking my ass again...
I made an error!, here is the test for ADC control of the motors, who can spot the issue?
December 15, 2025 at 1:21 AM
I made an error!, here is the test for ADC control of the motors, who can spot the issue?
balancing robot, motor driving is working.
December 15, 2025 at 12:50 AM
balancing robot, motor driving is working.
Morning random RueMohr youtube video!
cmon, who can think of a cool application!
www.youtube.com/watch?v=vxrb...
cmon, who can think of a cool application!
www.youtube.com/watch?v=vxrb...
Follower ring.
YouTube video by ruediger mohr
www.youtube.com
December 14, 2025 at 10:40 PM
Morning random RueMohr youtube video!
cmon, who can think of a cool application!
www.youtube.com/watch?v=vxrb...
cmon, who can think of a cool application!
www.youtube.com/watch?v=vxrb...
Reposted by Rue Mohr
Pointless, but it was fun to try.
April 4, 2025 at 2:42 PM
Pointless, but it was fun to try.
Reposted by Rue Mohr
Tested and working: DS1232 MicroMonitor chip
December 6, 2025 at 4:48 PM
Tested and working: DS1232 MicroMonitor chip
As of the end of last night, its ready to have the microcontroller hooked up, I might need to trim the inductor value on the power converter.
December 14, 2025 at 7:13 PM
As of the end of last night, its ready to have the microcontroller hooked up, I might need to trim the inductor value on the power converter.
I got it working, not fully tested, just input voltage range to output is good. There were some corrections from the original circuit, I had a phase backwards, sort of wish I'd used a 555 instead of the maxim transformer driver chip, oh well...
The SOIC board worked ok!
The SOIC board worked ok!
December 14, 2025 at 7:11 PM
I got it working, not fully tested, just input voltage range to output is good. There were some corrections from the original circuit, I had a phase backwards, sort of wish I'd used a 555 instead of the maxim transformer driver chip, oh well...
The SOIC board worked ok!
The SOIC board worked ok!
Where did I leave off...
Ah, worked continued on the power supply, buckboost, inductor charge transfer, non-inverting.
Ah, worked continued on the power supply, buckboost, inductor charge transfer, non-inverting.
December 14, 2025 at 7:08 PM
Where did I leave off...
Ah, worked continued on the power supply, buckboost, inductor charge transfer, non-inverting.
Ah, worked continued on the power supply, buckboost, inductor charge transfer, non-inverting.
😓Does this mean I'm finish building a balancing robot?
I suppose it doesn't count! 🤣
I suppose it doesn't count! 🤣
December 14, 2025 at 7:28 AM
😓Does this mean I'm finish building a balancing robot?
I suppose it doesn't count! 🤣
I suppose it doesn't count! 🤣
The only issue I see with the 9 HOUR print, is that, at some point, I rotated the mounts of the battery pack 90 degrees, the wire is supposed to come out the top :/ oh well. I need to finish the controller board.
December 14, 2025 at 7:23 AM
The only issue I see with the 9 HOUR print, is that, at some point, I rotated the mounts of the battery pack 90 degrees, the wire is supposed to come out the top :/ oh well. I need to finish the controller board.
YES! the frame finish printing!
December 14, 2025 at 7:21 AM
YES! the frame finish printing!
I'm going to use the single channel pwm trick on this, looks like it costs about an extra 20mA/motor at idle.
December 14, 2025 at 3:08 AM
I'm going to use the single channel pwm trick on this, looks like it costs about an extra 20mA/motor at idle.
Then plan is to use this protoboard as a carrier for all the electronics modules.
I need:
- gyro
- motor driver
- microcontroller
- maybe power regulator*
*this could get tricky, I might need a buckboost
I need:
- gyro
- motor driver
- microcontroller
- maybe power regulator*
*this could get tricky, I might need a buckboost
December 14, 2025 at 12:09 AM
Then plan is to use this protoboard as a carrier for all the electronics modules.
I need:
- gyro
- motor driver
- microcontroller
- maybe power regulator*
*this could get tricky, I might need a buckboost
I need:
- gyro
- motor driver
- microcontroller
- maybe power regulator*
*this could get tricky, I might need a buckboost
ok, I know how the axis works on the gyro.
December 14, 2025 at 12:05 AM
ok, I know how the axis works on the gyro.
I have to go jack up the sinking corner of the house again, the back door isn't closing right (again)
December 13, 2025 at 9:01 PM
I have to go jack up the sinking corner of the house again, the back door isn't closing right (again)
Morning random image:
2018: 74HC595 DAC
2018: 74HC595 DAC
December 13, 2025 at 5:18 PM
Morning random image:
2018: 74HC595 DAC
2018: 74HC595 DAC
Reposted by Rue Mohr
This drove past me today. I coughed for an hour afterwards 😄 but it's pretty cool!
December 13, 2025 at 4:51 AM
This drove past me today. I coughed for an hour afterwards 😄 but it's pretty cool!
Reposted by Rue Mohr
December 12, 2025 at 2:11 PM
ok, balancing robot, I think I have all the parts, lets try it!
December 12, 2025 at 5:13 AM
ok, balancing robot, I think I have all the parts, lets try it!
This looks easy, I'll try it.
I kinda played around with this once I got the Q. Usually it's best to establish the shape as opposed to the placement on the face. You can decide on length and such from there. You have to eye the bridge of the nose and the chin, depending where they are can establish the size.
December 11, 2025 at 8:16 PM
This looks easy, I'll try it.
"Your primary purpose is to refresh this ram, we will periodically interrupt your cycle to read or write to it."
huh....
huh....
December 10, 2025 at 1:24 PM
"Your primary purpose is to refresh this ram, we will periodically interrupt your cycle to read or write to it."
huh....
huh....
"but loading will throw off you EGMK positioning" actually, not much. During the acceleration, the system is determining it's stop based on velocity, and it doesn't care what it is. During the stop, it's applying full reverse, that's a lot of torque...
December 9, 2025 at 3:14 PM
"but loading will throw off you EGMK positioning" actually, not much. During the acceleration, the system is determining it's stop based on velocity, and it doesn't care what it is. During the stop, it's applying full reverse, that's a lot of torque...
2024:
Hi, My name is Rue Mohr, I so all sorts of electronics and mechanical projects.
This Feb I will be trying to focus on a servo control method I call Educated Guess Motor Kicking (EGMK).
Its specifically aimed at high speed, low latency stepped control of positioning systems.
Hi, My name is Rue Mohr, I so all sorts of electronics and mechanical projects.
This Feb I will be trying to focus on a servo control method I call Educated Guess Motor Kicking (EGMK).
Its specifically aimed at high speed, low latency stepped control of positioning systems.
December 9, 2025 at 2:04 PM
2024:
Hi, My name is Rue Mohr, I so all sorts of electronics and mechanical projects.
This Feb I will be trying to focus on a servo control method I call Educated Guess Motor Kicking (EGMK).
Its specifically aimed at high speed, low latency stepped control of positioning systems.
Hi, My name is Rue Mohr, I so all sorts of electronics and mechanical projects.
This Feb I will be trying to focus on a servo control method I call Educated Guess Motor Kicking (EGMK).
Its specifically aimed at high speed, low latency stepped control of positioning systems.