HMR3100
SENSOR PRODUCTS converters (ADC) onboard a microcontroller (µC) integrated circuit. The microcontroller integrated circuit periodically samples the amplified sensor voltages, performs the offset corrections, and computes the heading. This microcontroller also performs the external serial data interface and other housekeeping functions such as the calibration routine.
The power supply for the HMR3100 circuit board is to be about a +3 to +5 volt range allowing the user to provide a single lithium battery to logic level supply voltages. The power supply architecture is a single ground system for single ended supply sources (+ and ground return).
Note the “North Arrow” printed on the HMR3100 circuit board top side. This is the mechanical reference for product alignment purposes. When placed on the development kit’s
Pin Configuration
Pin Number | Pin Name | Description |
1 | VCC | Power Supply Input |
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2 | NC | No Connection |
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3 | RTS | Ready To Send Input |
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4 | NC | No Connection |
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5 | TXD | Transmit Data Output |
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6 | RXD | Receive Data Input |
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7 | GND | Power and Signal Ground |
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8 | NC | No Connection |
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The HMR3100 board is 0.77” on each side with eight pins in groups of four spaced at 0.6” apart in
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Figure 1
HMR3100 Dimensions
Solid State Electronics Center • www.magneticsensors.com • (800)