HMC5883L three-axis magnetometer connection guide

HMC5883L three-axis magnetometer LPCC-16 · 3 × 3 mm wiring guide with power, signal assignments, and bench checks.

LPCC-16 · 3 × 3 mm

16 contacts Current package

Honeywell ·

Required

Use the single-supply reference design. Tie VDD, VDDIO and S1 to 3.3 V. Use low-ESR ceramic capacitors for the reservoir and set/reset nodes.

Confirm address 0x1E and read ASCII H43 from registers 0x0A–0x0C.
Select continuous measurement by writing 0x00 to the mode register at 0x02. Read all six result bytes starting at 0x03 when data is ready.
Decode the signed X, Z and Y values in that order. Move the board away from ferromagnetic fixtures and confirm that the readings change as it rotates.

Honeywell HMC5883L datasheet, Table 1, single-supply reference design, and register map. Manufacturer PDF hosted by SparkFun.

Highlighted contacts are used in the required step or selected circuit. Select a contact to inspect it.

LPCC-16 · 3 × 3 mm

Transparent top view with pin 1 at the upper left, as shown in the pin configuration. Scroll the map to reach all contacts.

Tie high · Control

Tie to VDDIO in the recommended circuit.

Honeywell HMC5883L datasheet, Table 1, single-supply reference design, and register map. Manufacturer PDF hosted by SparkFun.

This map covers Honeywell’s bare HMC5883L in LPCC-16. Confirm the chip identity on boards sold with similar names.

HMC5883L manufacturer documentation· Honeywell HMC5883L datasheet, Table 1, single-supply reference design, and register map. Manufacturer PDF hosted by SparkFun.