Smart Fan and Power Expansion Board: Difference between revisions
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2. Output: DC 5V 4A with two channel outputs: | 2. Output: DC 5V 4A with two channel outputs: | ||
OUT1 for external device such as servo, motor, robots, mechanical arm, intelligent card etc. (output interface: HT3.96); | OUT1 for external device such as servo, motor, robots, mechanical arm, intelligent card etc. (output interface: HT3.96); | ||
Max current is 2A, and can be programming control to on/off; please refer to [[ | Max current is 2A, and can be programming control to on/off; please refer to [[#SAMPLE CODE 1 |SAMPLE CODE 1]]; | ||
OUT2 (GPIO output for raspberry pi);Max current is up to 4A if the OUT1 be closed; | OUT2 (GPIO output for raspberry pi);Max current is up to 4A if the OUT1 be closed; | ||
CAN'T be programming control, it will be output to raspberry pi directly if the switch be turned on; | CAN'T be programming control, it will be output to raspberry pi directly if the switch be turned on; | ||
3. Built-in temperature sensor, with active cooling fan, you can control flexibly the ON/OFF of mini fan via I2C command and GPIO programming. please refer to [[ | 3. Built-in temperature sensor, with active cooling fan, you can control flexibly the ON/OFF of mini fan via I2C command and GPIO programming. please refer to [[#SAMPLE CODE 2 |SAMPLE CODE 2]]; | ||
4. Support hardware pwm to control fan, please refer to [[ | 4. Support hardware pwm to control fan, please refer to [[#SAMPLE CODE 3 |SAMPLE CODE 3]]; | ||
Temperature range and accuracy | Temperature range and accuracy | ||
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* -55 ℃ ~ +125 ℃ when the ± 3 ℃ | * -55 ℃ ~ +125 ℃ when the ± 3 ℃ | ||
5. Cooling Fan can be replaced, please refer to [[ | 5. Cooling Fan can be replaced, please refer to [[#FAN SPECIFICATIONS |FAN SPECIFICATIONS]]; | ||
6. Standard HAT size; | 6. Standard HAT size; | ||