Knuckles imu lsm6-lis2-rp2354a

jakeread·knuckles-imu-lsm6-lis2-rp2354a·circuit/accel-lsm6dsv16x-rp2354a.kicad_pcb

About the Knuckles imu lsm6-lis2-rp2354a PCB

Knuckles imu lsm6-lis2-rp2354a is an open source RP2040/RP2350 PCB design by jakeread, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 20 × 21.5 mm, with 43 components from 21 distinct parts.

Its main chip is the RP2354A, from the RP2040/RP2350 family. Other key parts include the AP2112K-3.3TRG1, LIS2MDLTR and LSM6DSV16XTR. By type, the board carries 21 capacitors, 10 resistors, 4 ICs, 4 connectors, 2 diodes and 1 crystal.

It belongs with the sensors designs in this gallery.

From the project

This is an IMU module that pairs the LSM6DSV16X accelerometer with an LIS2MDL magnetometer, using an RP2354A microcontroller. It is part of a larger family of modular circuits that I call knuckles and are used to build machine controllers. The knuckles system is not yet public. This IMU will be used to improve kinematic and frequency response models with higher frequency data than I can currently capture.

Main components on the Knuckles imu lsm6-lis2-rp2354a

RP2354A AP2112K-3.3TRG1 LIS2MDLTR LSM6DSV16XTR

Knuckles imu lsm6-lis2-rp2354a bill of materials (BOM)

43 components, 21 distinct parts.

Qty	Part	Footprint	Refs
1	RP2354A RP2350_60QFN	RP2350-QFN-60-1EP_7x7_P0.4mm_EP3.4x3.4mm	U1
1	AP2112K-3.3TRG1 AP2112K-3.3	SOT-23-5	U2
1	LIS2MDLTR	LGA-12_2X2X1_STM	U3
1	LSM6DSV16XTR LSM6DSV16X	LGA14_LSM6_STM	U4
1	ABM10-166-12.000MHZ-T3 12MHz	Crystal_SMD_2520-4Pin_2.5x2.0mm	Y1
2	SMTWEM215STR Conn_01x01	Wurth_WA-SMST_M2_Thread_1.5mm_9774015243R	J1, J2
1	FTSH-105-01-F-DV-K Conn_ARM_JTAG_SWD_10	PinHeader_2x05_P1.27mm_Vertical_SMD_Shrouded_BD125-10-A-0305-0580-L-B	J4
1	SM03B-SRSS-TB(LF)(SN) Conn_01x03	JST_SH_SM03B-SRSS-TB_1x03-1MP_P1.00mm_Horizontal	J7
1	XL-1615RGBC-RF LED_RABG	LED_RGB_1615	D1
1	XL-2020RGBC-2812B WS2812B-2020	LED_WS2812B-2020_PLCC4_2.0x2.0mm	D2
1	AOTA-B201610S3R3-101-T 3.3uH	L_pol_2016	L1
11	CC0402KRX7R5BB104 0.1uF 6.3v	C_0402_1005Metric	C1, C5, C6, C14, C15, C16, C17, C18 +3
3	MSASJ105CB5106MFNQ1D 10uF 6.3v	C_0402_1005Metric	C2, C3, C4
2	CC0402JRNPO9BN100 10p	C_0402_1005Metric	C8, C9
4	CC0402MRX5R5BB475 4.7uF 6.3v	C_0402_1005Metric	C10, C11, C12, C13
1	CC0402MRX5R5BB224 220nF 6.3v	C_0402_1005Metric	C24
2	RC0402FR-0727RL 27R	R_0402_1005Metric	R1, R5
3	RC0402FR-071KL 1k	R_0402_1005Metric	R2, R6, R10
2	RC0402FR-07470RL 470R	R_0402_1005Metric	R3, R4
1	RC0402FR-0733RL 33R	R_0402_1005Metric	R7

Show 1 more

Qty	Part	Footprint	Refs
2	RC0402FR-0710KL 10k	R_0402_1005Metric	R8, R9

Knuckles imu lsm6-lis2-rp2354a design files

The KiCad project lives in the jakeread/knuckles-imu-lsm6-lis2-rp2354a repository on GitHub; these links point at the commit this page was built from.

Layoutcircuit/accel-lsm6dsv16x-rp2354a.kicad_pcb
Schematiccircuit/accel-lsm6dsv16x-rp2354a.kicad_sch

Knuckles imu lsm6-lis2-rp2354a: common questions

What microcontroller does the Knuckles imu lsm6-lis2-rp2354a use?

The Knuckles imu lsm6-lis2-rp2354a is built around the RP2354A, from the RP2040/RP2350 family.

How big is the Knuckles imu lsm6-lis2-rp2354a PCB?

The Knuckles imu lsm6-lis2-rp2354a measures 20 × 21.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Knuckles imu lsm6-lis2-rp2354a?

43 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the Knuckles imu lsm6-lis2-rp2354a design files?

From the jakeread/knuckles-imu-lsm6-lis2-rp2354a repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Knuckles imu lsm6-lis2-rp2354a design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which jakeread chose for the repository.

Can I test firmware for the Knuckles imu lsm6-lis2-rp2354a without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.