Switched to Sangaboard PyPI distribution and updated version number

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "poetry.masonry.api"
 
 [tool.poetry]
 name = "openflexure-microscope-server"
-version = "2.1.2"
+version = "2.1.3"
 description = "Python module, and Flask-based web API, to run the OpenFlexure Microscope."
 
 authors = [
@@ -34,12 +34,8 @@ Flask = "^1.0"
 numpy = "1.18.2"
 Pillow = "^5.4"
 scipy = "1.4.1" # Exact version so we can guarantee a wheel
-
 "RPi.GPIO" = { version = "^0.6.5", optional = true }
 picamera = {url = "https://github.com/rwb27/picamera/releases/download/v1.13.2b0/picamera-1.13.2b0-py3-none-any.whl" }
-
-pyserial = "^3.4" # Used for sangaboard (basic_serial_instrument) until we move to sangaboard pip library
-
 python-dateutil = "^2.8"
 psutil = "^5.6.7" # Autostorage extension
 opencv-python-headless = [
@@ -49,6 +45,7 @@ opencv-python-headless = [
 labthings = "0.6.4"
 pynpm = "^0.1.2"
 camera-stage-mapping = {git = "https://gitlab.com/openflexure/microscope-extensions/camera-stage-mapping.git"}
+sangaboard = "^0.2.0"
 
 [tool.poetry.extras]
 rpi = ["RPi.GPIO"]