Adapt a Remootio door opener remote to a golf buggy motor controller using an AVR m328p (Nano) for remote control of a hay hoist.
On reception of "down" command, hoist is lowered to P1 height. If no further commands are received, it will retract to the home position after the configured feed time minutes have elapsed.
A further "down" command will lower the hoist to the P2 height.
Return to home position on reception of an "up" signal. On error or low voltage, signal Remootio "closed" via input 1.
Refer to state machine diagram in reference folder.
If a number of feeds per day is specified, the hoist will lower from the home position to P1 after a randomly chosen interval, roughly "feeds/day" times a day.
The hoist will remain at P1 until feed time minutes have elapsed, then retract to the home position. Manual operation "down" or "up" will cancel a pending automatic schedule.
To disable scheduled feeding, manually lower the hoist slightly from the home position. To re-enable, return hoist to home position.
Connect Remootio and motor controller as indicated in the wiring diagram.
Connect USB cable and open a serial terminal 9600, 8n1. Press "?" for help:
Commands:
1 H-P1 time (0.01s)
2 P1-P2 time
m Man time
h H time
f Feed time (min)
n Feeds/day (0=off)
t Throttle (1-255)
s Status
d Lower
u Raise
Time values 1,2,m and h are set in units of 0.01s. Feeding time is in minutes. Throttle CV is roughly 5.0 * val / 255 Volts.
- Select output configuration 4: "Output 1 to open, Output 2 to close"
- Configure both "open" and "close" impulse length to 50ms.
- Enable sensor add-on: Input 1, Flip logic
Application interface displays "open" (ready for use) when the unit is operating normally, and displays "closed" (reduced function) when there is a sensor error or low battery condition.
To clear an error state, lower pulley slightly, then raise until the home state is reached.
Run the Kelly Controllers configuration program (v4.5)
- Forward Switch: Enable
- Foot Switch: Disable
- Throttle Sensor Type: 0-5V
- Throttle Effective Starting: 5%
- Throttle Effective Ending: 95%
- Max Motor Current: 30%
- Max Battery Current: 50%
- Start-up Delay: 0 sec
- Control Mode: Balanced
- Under voltage: 9V
- Over Voltage: 30V
- Throttle Up/Down Rate: 1 (Fast)
- Power On High Pedal Disable: Disable
- Releasing Brake High Pedal Disable: Disable
- Motor Top Speed: 100%
- Boost Function: Disable
- Economy Function: Disable
- Half Current in Reverse: Disable
- ABS: Disable
- 12V Output: Disable
- Motor Top Speed in Reverse: 100%
- Joysticker[sic] Throttle: Disable
- Regeneration: Disable
- Brake Switch: Disable
- Releasing Throttle Starts Regen: Disable
- Regen Current By Brake Switch On: 20% [unused]
- Max Regen Current: 100% [unused]
- Brake Sensor Type: No
- Brake Sensor Starting Point: 20% [unused]
- Brake Sensor Ending Point: 80% [unused]
- Motor Temperature Sensor: Disable
- Controller Stop Output Temperature: 125C
- Controller Resume Output 90C
[empty]
- Smooth: Disable
Refer to port-pins diagram and schematic diagram in reference folder.
Main event loop: src/main.c: main()
State machine logic: src/main.c: update_state()
Reset/initialisation: src/system.c: system_init()
Serial console logic: src/console.c: read_input()
Connect AVR ISP to programming header, program fuses, initialise the random seed book, then build and upload firmware to MCU:
$ make fuse
$ make randbook
$ make upload
Note: randbook will overwrite any stored configuration, so it should only be run once when initialising a new unit. Uploading a new firmware will not overwrite stored configuration.
- GNU Make
- gcc-avr
- binutils-avr
- avr-libc
- avrdude
On a Debian system, use make to install required packages:
$ make requires
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent