Octopus Analog Voltage Divider Brick OBVoltage(EF04039)
Contents
19. Octopus Analog Voltage Divider Brick OBVoltage(EF04039)#
19.1. Introduction#
The Voltage Divider can detect the supply voltage upto 50V and is based on resistor(1K and 15K Precision resistors).
19.2. Characteristics#
The voltage detection module allows the input voltage to reduce 16 times. As the micro:bit analog input voltage is 3.3V, so voltage detection module’s input voltage can not be greater than the 3.3Vx16 = 52.8V. Because of the micro:bit’s 10 bit ADC, that means sampling resolution are 0.003225V（3.3V / 1023）.So the module’s minimum input voltage is 0.00489Vx3.3=0.01064V.
Tips: All of Octopus bricks have supported Scratch programming.
19.3. Specifications#
| Item | Parameter |
|---|---|
| SKU | EF04039 |
| Type | Analog |
| Input Voltage（DC） | Utmost: 50V，Lowest: 0.01064V |
| Detection Scope | Upto 50V |
19.4. Outlook and Dimensions#
19.5. Quick to Start#
Materials used and connection diagram#
Connect to the P1 port as the picture shows
Take sensor:bit for example
Add Package#
Program as the picture shows#
Reference#
Links: https://makecode.microbit.org/_AXD2gM3J36Jz
You can also download the links below:
Result#
The current voltage is showing on the micro:bit.