I don't have an HX711 to test with - you could post your code up here though in case I can see anything wrong with it. Have you tried different baud rates?
It could also be a power supply issue - as on Arduino you may be running it from 5V, but you're using 3.3V on Espruino?
However as I said in the other thread, you're reading a 24 bit value, so it could give anything up to 16 million back. The number might be changing by 6000, but that's only 0.0375% - which is a pretty small variation.
How about trying it with some load on it, and seeing if it actually works?
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.
I don't have an HX711 to test with - you could post your code up here though in case I can see anything wrong with it. Have you tried different baud rates?
It could also be a power supply issue - as on Arduino you may be running it from 5V, but you're using 3.3V on Espruino?
However as I said in the other thread, you're reading a 24 bit value, so it could give anything up to 16 million back. The number might be changing by 6000, but that's only 0.0375% - which is a pretty small variation.
How about trying it with some load on it, and seeing if it actually works?