The value 'startNotification' is optional for the "read" request.
However, bluepy-scratch-link expects Scratch always set the value in the
requests. This may cause KeyError.
Signed-off-by: Shin'ichiro Kawasaki <kawasaki@juno.dti.ne.jp>
In the GitHub issue "Scratux support #9", debug message log was required
for analysis. However, script edit by users was required to enable debug
print. This is not handy.
To avoid that the chore by users, add -d debug print option.
Signed-off-by: Shin'ichiro Kawasaki <kawasaki@juno.dti.ne.jp>
In the GitHub issue "Scratux support #9", it was noticed that
bluepy-scratch-link is not so informative to tell what is happening.
Especially when BLE controllers or BLE devices are not available, no
information is printed.
Enrich log information so that users can tell what is happening easier.
Signed-off-by: Shin'ichiro Kawasaki <kawasaki@juno.dti.ne.jp>
Now gencert.sh generates private key and certificate for the Secure WSS
server in a single file. This is not good to automate certification
addition to NSS databases. Generate them separately into two files and
initialize the Secure WSS server specifying them.
Signed-off-by: Shin'ichiro Kawasaki <kawasaki@juno.dti.ne.jp>
LEGO Boost communicates with a Scratch extension through Scratch-link.
It was reported that bluepy-scratch-link fails to connect to LEGO Boost.
LEGO Boost advertises adtype 0x7 "Complete List of 128-bit Service Class
UUIDs". However, bluepy-scratch-link checks only adtype 0x3 "Complete
List of 16-bit Service Class UUIDs" which is valid for micro:bit.
To allow bluepy-scratch-link, check both adtypes 0x7 and 0x3. Introduce
constants to note those two adtype values.
Signed-off-by: Shin'ichiro Kawasaki <kawasaki@juno.dti.ne.jp>
Implemented Scratch-link[1] feature as a small python script. Confirmed
it is working with Scratch 3.0[2] using a micro:bit as the BLE device to
link. This allows Linux PCs to connect Scratch and micro:bit.
Utilized bluez[3] and bluepy[4] to handle Bluetooth Low Energy connection.
Utilized Websocket module for Secure Web Socket server.
[1] https://github.com/LLK/scratch-link
[2] https://scratch.mit.edu/
[3] http://www.bluez.org/
[4] https://github.com/IanHarvey/bluepy
This is a minimal implementation to support micro:bit. Some of
Scratch-link features are not implemented. For example, Bluetooth (not
BLE) devices are not supported. BLE device support is confirmed only with
micro:bit.
Signed-off-by: Shin'ichiro Kawasaki <kawasaki@juno.dti.ne.jp>
