An old armchair from the living room upgraded with electric motors. Now you can relax while taking a tour in the garden.
Specification
- Top-speed: 5 km/h
- Range: Approx 20 minutes due to old batteries
- Turning radius: 0.25 m
- Weight: 100 kg
- Current Features
- individual drive of each tire
- Operate with joystick
- Operate with Remote control via WiFi
- Web interface for configuration (e.g. max speed or current limit)
- Massage function
- USB Charging Port
Parked armchair
- Future Features
Note: This version has been discontinued and replaced by the electric-armchair V2 which includes new features.More sensors:AccelerometerLidar sensorGPS receiver
Anti slip regulationSelf driving algorithmIndividual suspension of the rear tire for better gripLights
Components
Mechanical
- Used armchair
- 2x hand truck tires
- 2x swivel castors
- chain and sprockets
Motors
- Power: 350 W each
- Voltage: 24 V
- Type: Brushed DC motor
- Rotating speed: 2500 rpm (without gearbox)
- Attachment: Gearbox 9.8:1
Battery
- Voltage: 24 V (2x 12 V in series)
- Capacity: 2,4 kWh (2x 12 v 100 Ah)
- Type: Deep cycle AGM
Control
- Custom pcb with ESP-32 microcontroller
- 2x 100A full bridge motor driver
- 2x analog hall-sensor for current metering
Tires and batteries mounted to frame
Motor drivers, current-sensors and control pcb
Videos
Garden tour
2022.09.28
Turning radius, Remote control
2022.09.28
Fails
Tire loss
Cheap tires
Tip over
Too much acceleration
Motor burned out
Due to a missing timeout in the firmware one motor slightly moved all night
Cat in control
Cat operates the armchair
Gallery
PREVIOUSPressure regulated Waterpump
NEXTE-Bike 1500W