The three pins are rather big, especialyy as compared to the other micro-miniture SMD chip pins and solder points on the NodeMCU board. The chip has 3 sizable pins and a heatsink. There’s the AMS1117 voltage regulator chip that regulates the +5V from the USB cable/connector.BMW F series, the new 1 Series, 3 Series, 5 Series, 7 Series, GT, X3, brush hidden upscale programming line goes on sale ! BMW series single module programming or modules hiding ENET data line BMW hidden ENET data cable, F series programming cable, the latest ESYS 3.22.5 and V49.4 data.Icom Programming Cable Schematic for various radios: Additional information Including, IC-F1010 & IC-F2010.Make sure you build the adapter for the PC cable that jumpers pins 4 to 6 and 7 to 8. This is a schematic of how to make the Motorola RIB usable for programming Vertex Radios. Normally we don't get involved in assisting in the programming of radios other than Motorola's.On the DB25F on the computer, pins 4,5 are jumpered and pins 6,8,20 are jumpered. If you still have a 25-pin serial port on your computer, here is how to make a cable: Pins 2,3,7 are run straight through to the DB25F connector on the computer. On the computer end, jumper: pins 7 and 8.
