sorry for the lack of clarity Clive, I am running a sketch called "Greenhouse" on an Arduino Geniuno Uno, see photograhps, this requires the connection of an LCD screen.
I have a 3.5inch TFT LCD manufactured by "MCufriend" which I am trying to connect via an STM32 Bluepill, see photographs.
In order to program the Bluepill I am using the ST-Link Utility and an USB ST-Link Programmer Debugger. At the moment I am unable to get the programmer to connect to the Bluepill in order to Upload the software that will run the LCD. The "Greenhouse" sketch sends instructions to the LCD via the Bluepill connection. ANy ideas what I am doing wrong?