The uncompensated temperature of the BMP180 is incorrectly converted to a 16-bit signed value, instead of a 32-bit signed value (long). Since the data is 16-bits wide and can therefore not be negative, the easy fix would be to do the following:

sip.js(1128): uncompensated = uint16(data[0], data[1]);

Please see page 15 of the manual of the BMP180 chip:
https://ae-bst.resource.bosch.com/media

Summary of Problem

Not able to open port with stopbits as 1.5

I am currently building a desktop client using electron, where the COM port receives data correctly for values: baudRate: 2400, dataBits: 7, stopBits: 1.5, parity: 'none'

I found from the node-serialport documentation, stopBits Must be one of these: 1 or 2. But, should 1.5 be supported as well? especially for old & slow