MicroPython Forum (Archive)

i use an wemos board one SPI ist the for the TFT Port and a other for the SD Card. Only Difference ist an other Chipselect Output.Pin- mosi/miso usw use the same Pins - technical no problem The Driver for the TFT toggels the Chipselect - so no problem - but toggels the SD Card Class the CS Pin ? CS ...

read from a socket ldat = connection.recv(4) # get len field dlen = ustruct.decode("!i",ldat) #byte to int bdat = connection.recv(dlen) #get bytes tdat = bdat.decode('utf-8') # bytes to text odat = json.loads(tdat) #json text to obj back = obj.call(odat) # tdat = ujson.dumps(back) bdat = tdat.encode...

first : i found 2 versions for define an struct offset | uctype or uctype | offset Which version is the right one ? 2: variable len of an array - how ? background : i want to handel a Vertex Message - first come 4 Byte for len message then comes the data as (json/text) vertex = { "size" : 0 | uctype...