Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| en:examples:sensor:force [2012/06/09 11:06] – raivo.sell | en:examples:sensor:force [2020/07/20 09:00] (current) – external edit 127.0.0.1 | ||
|---|---|---|---|
| Line 26: | Line 26: | ||
| Measuring the Newton force by the FSR it is good idea to map analogue voltage reading ranges to 0 V to supply voltage. After that you can calculate the FSR resistance using following formula: | Measuring the Newton force by the FSR it is good idea to map analogue voltage reading ranges to 0 V to supply voltage. After that you can calculate the FSR resistance using following formula: | ||
| - | R< | + | R< |
| Where: | Where: | ||
| Line 45: | Line 45: | ||
| The example program of the force sensor shows the measured force (Newtons) and weight (kg) on the LCD. | The example program of the force sensor shows the measured force (Newtons) and weight (kg) on the LCD. | ||
| - | ~~PB~~ | + | < |
| <code c> | <code c> | ||
| Line 102: | Line 102: | ||
| // The voltage = Vcc * R / (R + FSR) where R = 10K and Vcc = 5V | // The voltage = Vcc * R / (R + FSR) where R = 10K and Vcc = 5V | ||
| - | // so FSR = ((Vcc - V) * R) / V | + | // so FSR = ( (Vcc - V) * R) / V |
| // fsrVoltage is in millivolts so 5V = 5000mV | // fsrVoltage is in millivolts so 5V = 5000mV | ||
| resistance = 5000 - voltage; | resistance = 5000 - voltage; | ||
