I don't know what to do as a next project. Anything that is not easier/cheaper than say ebay..... which has solutions for problems I never knew existed.
I got a sd card reader from picaxe days and record / change my voice with software and a ssd1306 to show eyes that go with the sound which is supposed to go with the "robots" that just don't bump into anything cos US and gcb supported laser but everyone does that and don't know what to try next.
i got a "transistor tester " that uses a 328 and does inductors, capacitor esr, lots for £5.
Even my 3d printers use a 328.
Hard to think of anything within pic capabilities to build and some ideas don't even need a pic being just analogue.
Check https://www.youtube.com/c/Bigclive/videos for his teardown of poundland stuff. It makes you think why bother when it's so cheap. Fun factor?
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Yeah, I saw one in a charity shop years ago. just the levers and no interface.
Years later a good gift for a grand child..4 girls and 1 boy ut the girls have liked
the 3d maze safes with £20 note in...if they could open it.
It's hard to think of something original. A data analyser is a few quid.
A scope would need a quad core arm and decent circuitry.
I don't play with the mains.. 240V here and one wire is ground... so the other isn't but wants to be so don't bother.
I got a 6 leg robot with 18 servos , i2c controllers but never got it sorted due to power and the leg movement... 3 stay on the ground while you move the other 3. just thought someone's done it better. And I drilled a ole in my thumb nail when the bit snapped... so mechanical projects without a workshop.. not really.
When I look at my 3dprinters running on a 328 board I think it's amazing, 5 stepper motors and a heated bed and and hot nozzle and graphic display.
I did buy a tank chassis that could be yet another "robot" but more fun with a face https://www.youtube.com/watch?v=4LnerMCgeNU&list=UUwOlmqc5IB4FhvS5XKu1sLw&index=91 and a purpose like find a block emitting ir.. thoughts , but then sorting hbridge and pwm again, not a problem just a chore.
stan cartwright
stan cartwright - 8 hours ago
Yeah, I saw one in a charity shop years ago. just the levers and no interface.
No you did not. You thought you did. The project I shared has digital encoders in the gearbox. This was the mod I added which means the robot can be controlled using 5 axis addressing.
Do the mod.. then sell the mod.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
@Anobium - The ebay arm is just servos I think and it's smaller than it looks as I have similar servos to the ones it uses so can imagine it's real size.
I had forgotten about the PCA9685. Useful board and GCB support.
I think one of these boards would be needed for the ebay arm as using pulseout to move more than 1 servo at a time wouldn't work.
Personally I think the original toy arm with lever switches would be more "fun".
Something for a 7 year old. The sd card mp3 player I got from picaxe works great with gcb, as the demo shows and does a face which seems popular with "expensive" toy robots,
The picaxe guys liked it but I stressed I'd used "another compiler" to do the graphics which were so easy with gcb. I did get the ssd1306 working with picaxe but it was just plot which with help became a line draw. Stuff gcb users take for granted.
It became "tron" but picaxe version was slowish.
I bought a line follower for my grandson 4 years ago for £4. why build one?
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Cheers for the links but too much money for me.
I got the code to run mine... well I can control each servo but setting the pattern for movement I haven't sorted as only arduino or python examples to research.
Anyway it was much cheaper. Bought 20 servos.
I usually use 50Hz interrupt to refresh the servos as they will be under load ie the weight of the thing and will not keep their position otherwise. The horizontal movement ones would be ok but not the knees.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi @Domenic Cirone.... Seen my ebay link for a robot arm?
I think you paid too much sir.
When are you thinking of getting your device working?
Can I help?
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Do you ever lose code or look at code and wish you documented it better?
I looked for the multi servo code and found this. I don't remember writing it and all the other versions I found.
No for next problems at the time it seems or I'd mentioned it.
#chip mega328p,16#option explicit#include <PCA9685.h>#define PCA9685_ADDRESS 0x80#define hi2c_BAUD_RATE 100#define hi2c_DATA PORTC.4#define hi2c_CLOCK PORTC.5hi2cModeMaster'The call IS required to setup the devicePCA9685_Initialise'Set the frequency using the Great Cow BASIC PWM constant#define PWM_Freq 60 ;60Hz for servoPCA9685_SetFreqency(60)dimservoasbyte;whichchannel..ieservodimservoposasword;servoangledoforservopos=209to389;forservo=1to2PCA9685_WriteChannel(PCA9685_LED0,0,servopos)PCA9685_WriteChannel(PCA9685_LED1,0,servopos)PCA9685_WriteChannel(PCA9685_LED2,0,servopos)PCA9685_WriteChannel(PCA9685_LED3,0,servopos)PCA9685_WriteChannel(PCA9685_LED4,0,servopos)PCA9685_WriteChannel(PCA9685_LED5,0,servopos)PCA9685_WriteChannel(PCA9685_LED6,0,servopos)PCA9685_WriteChannel(PCA9685_LED7,0,servopos)PCA9685_WriteChannel(PCA9685_LED8,0,servopos);nextservowait10msnextservoposwait1sforservopos=390to584;forservo=1to2PCA9685_WriteChannel(PCA9685_LED0,0,servopos)PCA9685_WriteChannel(PCA9685_LED1,0,servopos)PCA9685_WriteChannel(PCA9685_LED2,0,servopos)PCA9685_WriteChannel(PCA9685_LED3,0,servopos)PCA9685_WriteChannel(PCA9685_LED4,0,servopos)PCA9685_WriteChannel(PCA9685_LED5,0,servopos)PCA9685_WriteChannel(PCA9685_LED6,0,servopos)PCA9685_WriteChannel(PCA9685_LED7,0,servopos)PCA9685_WriteChannel(PCA9685_LED8,0,servopos);nextservowait10msnextservoposforservopos=584to389;forservo=1to2PCA9685_WriteChannel(PCA9685_LED0,0,servopos)PCA9685_WriteChannel(PCA9685_LED1,0,servopos)PCA9685_WriteChannel(PCA9685_LED2,0,servopos)PCA9685_WriteChannel(PCA9685_LED3,0,servopos)PCA9685_WriteChannel(PCA9685_LED4,0,servopos)PCA9685_WriteChannel(PCA9685_LED5,0,servopos)PCA9685_WriteChannel(PCA9685_LED6,0,servopos)PCA9685_WriteChannel(PCA9685_LED7,0,servopos)PCA9685_WriteChannel(PCA9685_LED8,0,servopos);nextservowait10msnextservoposwait1sforservopos=388to209;forservo=1to2PCA9685_WriteChannel(PCA9685_LED0,0,servopos)PCA9685_WriteChannel(PCA9685_LED1,0,servopos)PCA9685_WriteChannel(PCA9685_LED2,0,servopos)PCA9685_WriteChannel(PCA9685_LED3,0,servopos)PCA9685_WriteChannel(PCA9685_LED4,0,servopos)PCA9685_WriteChannel(PCA9685_LED5,0,servopos)PCA9685_WriteChannel(PCA9685_LED6,0,servopos)PCA9685_WriteChannel(PCA9685_LED7,0,servopos)PCA9685_WriteChannel(PCA9685_LED8,0,servopos);nextservowait10msnextservoposLoop
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
@Anobium - I would buy the ebay arm and get it working if there were any other gcb users, apart from you, that were interested in it.
Like many interesting... to me, devices. I thought it would be cool if a few other people were involved in the project... like gcb has had a few people working on it but for a device that looks interesting. Is a robot arm that interesting for others?
£25 is not much for the hardware and "fun" getting it working...
would make a nice angle poise lamp :)
Seriously, what do gcb users use it for? What would they like to see and if enough people want to get into the same project then bouncing ideas would be nice.
Using pics for a practical idea is a li-ion battery spot welder... another post but thinking of a project.
I mentioned the robot arm to a friend who said "can it hold a pen?"...
sort of says it all.
Last edit: stan cartwright 2021-08-08
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I don't know what to do as a next project. Anything that is not easier/cheaper than say ebay..... which has solutions for problems I never knew existed.
I got a sd card reader from picaxe days and record / change my voice with software and a ssd1306 to show eyes that go with the sound which is supposed to go with the "robots" that just don't bump into anything cos US and gcb supported laser but everyone does that and don't know what to try next.
i got a "transistor tester " that uses a 328 and does inductors, capacitor esr, lots for £5.
Even my 3d printers use a 328.
Hard to think of anything within pic capabilities to build and some ideas don't even need a pic being just analogue.
Check https://www.youtube.com/c/Bigclive/videos for his teardown of poundland stuff. It makes you think why bother when it's so cheap. Fun factor?
Something like this http://www.zen21667.zen.co.uk/ but using Great Cow BASIC ?
Yeah, I saw one in a charity shop years ago. just the levers and no interface.
Years later a good gift for a grand child..4 girls and 1 boy ut the girls have liked
the 3d maze safes with £20 note in...if they could open it.
It's hard to think of something original. A data analyser is a few quid.
A scope would need a quad core arm and decent circuitry.
I don't play with the mains.. 240V here and one wire is ground... so the other isn't but wants to be so don't bother.
I got a 6 leg robot with 18 servos , i2c controllers but never got it sorted due to power and the leg movement... 3 stay on the ground while you move the other 3. just thought someone's done it better. And I drilled a ole in my thumb nail when the bit snapped... so mechanical projects without a workshop.. not really.
When I look at my 3dprinters running on a 328 board I think it's amazing, 5 stepper motors and a heated bed and and hot nozzle and graphic display.
I did buy a tank chassis that could be yet another "robot" but more fun with a face https://www.youtube.com/watch?v=4LnerMCgeNU&list=UUwOlmqc5IB4FhvS5XKu1sLw&index=91 and a purpose like find a block emitting ir.. thoughts , but then sorting hbridge and pwm again, not a problem just a chore.
Last edit: stan cartwright 2021-08-06
No you did not. You thought you did. The project I shared has digital encoders in the gearbox. This was the mod I added which means the robot can be controlled using 5 axis addressing.
Do the mod.. then sell the mod.
@Anobium ... or this https://www.ebay.co.uk/itm/153132727284?_trkparms=ispr%3D1&hash=item23a76bfbf4:g:ckMAAOSwxr1dsXqW&amdata=enc%3AAQAGAAACgPYe5NmHp%252B2JMhMi7yxGiTJkPrKr5t53CooMSQt2orsStEKTPzZMfQmny3knR97t0NjYM8%252BJV50Tr4sshPN2FwWOOYGCrTDg9wq%252BTMN8De8xBhKNDWGIX4Nn8L15ux%252ByOX9vM9KpnkGGDmgMth0cv5wMDnw8A%252BZvtRqERFPS6GkVMwCU2UJyUt%252FLd6EVAeVP5f4eJaZJmimKKhvKAik1kAsfFYK%252FH5CrlGTendHLdqTTXyjP%252Bc8meIHmexVWEk8wrEc2HcWfYLusDLIz9KCxr3dstXLZhUDrGAsWd8XgcidxBbqzPKYeaoVnLZNbwvY37eAJSM%252BWqf1bRqImwfF0zy3BLcX6PeKIyJ%252FKntyQ3RktKfcasdClJK0XAc2hYIj3nFWHAhPOY%252B7bs%252FQRP8eNf3BhcYmCDQFmUN74eAZH%252Fq1O0r20kIYQDEKeEWCOCsg3pc6C5h3%252Fzs9sEZePVh4WiC1TWgzjupY8xMCaOZ92errov7UErh46ajcvwCcELj9Kx352tEDim1PtJIYgNE6QqI1qgJlAcvUQCf6Rv7PhfgsC38yvZPxYgKv%252BmeXPj8V%252FxWbwKxf6RY6fVhivgkxLBIykLgX%252FLmtBL%252BFG9VLd1iDAeTDFOJDQ5UVjSNmCPAwVvaHSukoswOo3BbcLPSBNTwC4sLXdvxrsYMDqPX%252FVfvE1Jq7UEPIXYZYU0V8gqyoitKK3EWpY0V13ZewhJhV9xFfozVAY%252BDnGXHXHsIRhtXLz6i2yE3qb%252Bh0DHRTLej6VqJHpnH3DyCY87ZEpKGt1e%252BbEiKxA1rBlL64QUf76J5336GRf%252BBqHMuzWjeFJhb1tvkxVoIRNUbJwRhme6yloeLI%253D%7Campid%3APL_CLK%7Cclp%3A2334524
You can get the old ones with switch levers pre- owned for same price. See what I mean about building stuff when this looks initially tidy for £25.
Or print one https://www.thingiverse.com/search?q=robot+arm&type=things&sort=relevant
Last edit: stan cartwright 2021-08-07
@Stan. That robot looks very hackable. Be interesting to see one in action using G-Codes.
@Anobium - The ebay arm is just servos I think and it's smaller than it looks as I have similar servos to the ones it uses so can imagine it's real size.
I had forgotten about the PCA9685. Useful board and GCB support.
I think one of these boards would be needed for the ebay arm as using pulseout to move more than 1 servo at a time wouldn't work.
Personally I think the original toy arm with lever switches would be more "fun".
Last edit: stan cartwright 2021-08-08
Something for a 7 year old. The sd card mp3 player I got from picaxe works great with gcb, as the demo shows and does a face which seems popular with "expensive" toy robots,
The picaxe guys liked it but I stressed I'd used "another compiler" to do the graphics which were so easy with gcb. I did get the ssd1306 working with picaxe but it was just plot which with help became a line draw. Stuff gcb users take for granted.
It became "tron" but picaxe version was slowish.
I bought a line follower for my grandson 4 years ago for £4. why build one?
This place has a interesting items?
Here is one https://www.robotshop.com/en/lynxmotion-t-hex-4dof-hexapod-robot-kit-no-electronics.html
I have this https://www.robotshop.com/en/lynxmotion-al5d-pltw-robotic-arm-kit.html
but havent had time to play with yet.
Cheers for the links but too much money for me.
I got the code to run mine... well I can control each servo but setting the pattern for movement I haven't sorted as only arduino or python examples to research.
Anyway it was much cheaper. Bought 20 servos.
I usually use 50Hz interrupt to refresh the servos as they will be under load ie the weight of the thing and will not keep their position otherwise. The horizontal movement ones would be ok but not the knees.
Hi @Domenic Cirone.... Seen my ebay link for a robot arm?
I think you paid too much sir.
When are you thinking of getting your device working?
Can I help?
Do you ever lose code or look at code and wish you documented it better?
I looked for the multi servo code and found this. I don't remember writing it and all the other versions I found.
No for next problems at the time it seems or I'd mentioned it.
@Anobium - I would buy the ebay arm and get it working if there were any other gcb users, apart from you, that were interested in it.
Like many interesting... to me, devices. I thought it would be cool if a few other people were involved in the project... like gcb has had a few people working on it but for a device that looks interesting. Is a robot arm that interesting for others?
£25 is not much for the hardware and "fun" getting it working...
would make a nice angle poise lamp :)
Seriously, what do gcb users use it for? What would they like to see and if enough people want to get into the same project then bouncing ideas would be nice.
Using pics for a practical idea is a li-ion battery spot welder... another post but thinking of a project.
I mentioned the robot arm to a friend who said "can it hold a pen?"...
sort of says it all.
Last edit: stan cartwright 2021-08-08