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Using this TI BASIC program, it will calculate the value resistor needed for an LED (for use with less then 1 Amp). TI Nspire CX CAS
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| # Used on a TI Nspire CX CAS | |
| # -------------------------- | |
| # "Remove comments before running" | |
| Define ledresistorval()= | |
| Prgm | |
| Request "VCC",v1 | |
| Request "Forward Voltage",v2 | |
| Request "Forward Current",c | |
| If v1<v2 Then | |
| Return "LED value too low" | |
| EndIf | |
| If v1=v2 Then | |
| Return "Error" | |
| EndIf | |
| If c>1 Then | |
| Return "Current too high." | |
| EndIf | |
| Disp "Resistor Value: " | |
| Disp ((v1-v2)/(c)) | |
| Return | |
| EndPrgm |
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