This hand heater is not yet available. We’re still testing prototypes! If you’d like to be involved in the discussion about the design of the heater, please join the SuperHouse Discord server and check out the #assistive-technology channel.
Controlling an electric wheelchair can be difficult in winter, when cold hands and fingers can stop you from accurately moving the joystick. This small hand heater can be mounted on a wheelchair so that it blows warm air over the joystick area to keep your hand warm and mobile.
The example firmware provides multiple power levels, MQTT control and reporting over WiFi, over-temperature shutdown, Bluetooth control, and fan speed sensing to detect a stalled fan.
- 24Vdc power to suit most wheelchair batteries
- Espressif ESP32 processor (Arduino compatible)
- Speed-controlled fan with tacho sensor
- 30W resistor heating array
- Output temperature sensor
- CAN bus interface to receive commands and report status
- 3.5mm socket for external control button, compatible with assistive buttons
- Power from either a 2.1mm DC jack or via the CAN bus connector
- Mount using camera fittings such as common Go-Pro brackets
- WiFi to integrate with home automation systems using MQTT
- Bluetooth for control from a mobile phone
- Laser-cut stainless steel case