DIY easy wireless servo follow focus kit (arduino + NFR24L01)

This is a super minimal wireless follow focus system made with arduino, servo motor, NRF24L01 transceivers and a potentiometer.

Code:

Main components:
Arduino Nano (x2)
Servomotor (270° angle LewanSoul LD-3015MG)
10K Potentiometer
Resistor 100k
Capacitors 10nF, 10uF (x2), 220uF (x2)

Other electronic stuff:
Perforated PCB boards
Jumpers (male and female)
Switches (x2)
Battery Sony NP-F550 compatible
Battery socket (recycled from an old battery charger)
Battery 9V + connector
DC connectors (male and female)

Extra components:
Gears + Wheel (recycled from FF-125 Proaim)
1/4” Hot Shoe Adapter
1/4” male to famale adapter (x2)
Plastic boxes
M3 esagonal spacers
M3 screws
Velcro

Donation:

#diy #arduino #wireless

[LotmineRu]

Nice work) But maybe you need a stepper motor, the servos are very noisy.

[tubagigantus]

Bravo, nice work !!! Mine is rougher but functionally equal.. I am thinking about implementing a distance measuring module like HY-SRF05 to make autofocus with vintage lenses like helios etc. The problem is external environmental noise that eventually spoils the precision of metering, next is a laser beam module on my list. Any ideas? Did you consider autofocusing your follow focus?

[bartoszgadki]

Wow. Im thinking about something like this but coupled with rotary encoder. Dolly zoom without powerzoom and second person to do it :)

[linshengji]

Really neat design! Have you encountered servo motor jittering problem? If yes, how did you solve it?

[daisukisuzuki]

that's great! we're can I buy this?

[taruntyagi]

Upload full video of making process, i tried but mine didn't work checked every thing many times

[MEGATestberichte]

Very nice. In the future i plan on doing something similar, if i find the time. Iwonder if this will work with a stepper NEMA motor too.

[DmitryDyugaev]

Do you still have 3D model for servomotor? Can you share? Please

[kayizijoel]

Can you build a pair of follow focus and zoom controlled at the same time? I need 3 pairs for my sports channel using iPhone as camera. Now that I want to level up by adding DOF adapter and proper lenses so I need manual focus and zoom

[_Pawelski]

Wow thats really great. How do you set end points though?

[BHxr]

real 360° continuous rotation servomotors are a pita as there is NO feedback at all, i'm working on an autofocus system but heck, i might slap a neodymium magnet on the gear and use a linear hall sensor or something cuz rn its ridiculous

[_sonic_tv]

Very nice. Can you please give me a list of the items needed to build it?

[stream-cut]

awesomee bro, would you mind to make it using stepper motor version (with a4988 driver) and unlimited turns? 🙏🙏

[spaceviewentertainment]

how to fix this bro.?.
Sketch uses 2076 bytes (6%) of program storage space. Maximum is 30720 bytes. Global variables use 44 bytes (2%) of dynamic memory, leaving 2004 bytes for local variables. Maximum is 2048 bytes. avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xb7 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xb7 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xb7 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xb7 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xb7 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0xb7 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0xb7 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0xb7 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0xb7 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0xb7 Failed uploading: uploading error: exit status 1

[Samuel_Maillard]

nice ! are the plastic boxes 3D printed ?

[dummag]

No!!! it must be wirh brushless motor, not with servo or stepper!!!!