Guys, I've run out of ideas of what might be wrong. I have Mega 2560 board R3. I connect it via USB to a Windows 7 machine (I tried two win 7 PCs and one running linux ubuntu) I think I installed the environment (1.0.1) and drivers correctly My Arduino appears in Device Manager as installed on CO…

Mega 2560 R3 not uploading any sketch

Topic		Replies	Views
Mega2560 board refuse to lod sketch IDE 1.x	17	2207	May 5, 2021
What next? Mega2560r3 ATmega16U2 DFU Win8 USB IDE 1.x	18	28451	May 5, 2021
Arduino Mega 2560R3 non riconosciuta Generale	24	10187	May 7, 2021
[SOLVED] Mega2560 R3 - can't upload... IDE 1.x	8	3886	May 5, 2021
Arduino Mega 2560 not detected IDE 1.x	14	3796	May 5, 2021