Here is my config (sudo nano /boot/config.txt):
sdtv_mode = 2
sdtv_aspect = 3
overscan_left = 20
overscan_right = 5
overscan_top = 5
overscan_bottom = 5
framebuffer_width = 800
framebuffer_height = 450
arm_freq = 800
gpu_mem = 64
core_freq = 250
sdram_freq = 400
over_voltage = 0
Screen is well filled up .... but I am grateful for every tip as a beginner.
Here's a tutorial on how the thing to 5V umlötet (as I said, I'm a beginner, but worked out fine!):
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