» Ausencia , el cáncer y yo» , el libro más personal de profesor10demates
Los derechos de autor serán donados integramente a la lucha contra el cáncer infantíl
| Symptom | Likely Cause | Fix | | :--- | :--- | :--- | | Sensor gets hot | JV1 set to 5V but sensor is 3.3V | Change JV1 to 3.3V immediately | | Nothing works | No power to shield | Check JV1 is not in middle position | | Upload fails | Device on D0/D1 | Unplug everything from pins 0 & 1 | | I2C scan finds nothing | Missing pull-up resistors | Add external 4.7k resistors | | Servo twitches | Insufficient current | Use external 6V supply on EXT_PWR |
| Symptom | Likely Cause | Fix | | :--- | :--- | :--- | | Sensor gets hot | JV1 set to 5V but sensor is 3.3V | Change JV1 to 3.3V immediately | | Nothing works | No power to shield | Check JV1 is not in middle position | | Upload fails | Device on D0/D1 | Unplug everything from pins 0 & 1 | | I2C scan finds nothing | Missing pull-up resistors | Add external 4.7k resistors | | Servo twitches | Insufficient current | Use external 6V supply on EXT_PWR |