@joakim finally found the mistake I'd made in the node.js code... missed off the subscribe call on the rx characteristic. All working now.
Next task is, as you've said, figure out if there's a more energy efficient way of doing this.
@knolleary started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@joakim finally found the mistake I'd made in the node.js code... missed off the subscribe call on the rx characteristic. All working now.
Next task is, as you've said, figure out if there's a more energy efficient way of doing this.