numpad4x4readout
michael-altmann/numpad4x4readout/numpad4x4readout
This patch allows to readout a 4x4 numpad connected with all 8 wires to the arduino. Use 10 k Resistors on the 4 read-pins on ground to get some pulldown. Testing required.
numpad4x4readout
@/numpad4x4readout
This patch allows to readout a 4x4 numpad connected with all 8 wires to the arduino. Use 10 k Resistors on the 4 read-pins on ground to get some pulldown. Testing required.
o1port
wire 1 (high)
o2port
wire 2 (high)
o3port
wire 3 (high)
o4port
wire 4 (high)
i1port
wire 1 (read) - use with 10 resistor
i2port
wire 2 (read) - use with 10 resistor
i3port
wire 3 (read) - use with 10 resistor
i4port
wire 4 (read) - use with 10 resistor
pulpulse
out pulse when pressed
numnumber
output number
strstring
output string