BMI320
SohumNigam·StabilityBot_MK1·hardware/PCB/BMI320/BMI320.kicad_pcb
About the BMI320 PCB
BMI320 is an open source PCB design by SohumNigam, published on GitHub. It is a 2-layer board measuring 16 × 22 mm, with 9 components from 7 distinct parts.
Other key parts include the BMI320 and XC6206PxxxMR. By type, the board carries 4 capacitors, 2 ICs, 1 connector, 1 diode and 1 resistor.
It belongs with the robotics & motion and sensors designs in this gallery.
From the project
A self-balancing two-wheeled robot. an inverted pendulum stabilized by IMU feedback and PID motor control, being built up toward full 4-state LQR control on a custom PCB.
A self-balancing two-wheeled robot. an inverted pendulum stabilized by IMU feedback and PID motor control, being built up toward full 4-state LQR control on a custom PCB.
Full write-up / showcase: sohumnigam.github.io/projects/stabilitybotMK1.html
I wanted a project that went past the usual "balance a robot with a PID loop" hobby build. Something that let me go deep on control theory (state-space modeling, LQR, Kalman filtering), embedded firmware, and PCB design all at once. The long-term goal is a robot that balances using a full 4-state LQR controller (θ, θ̇, x, ẋ) on hardware I designed…

Main components on the BMI320
BMI320 bill of materials (BOM)
9 components, 7 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BMI320 | Bosch_LGA-14_3x2.5mm_P0.5mm | U1 |
| 1 | XC6206PxxxMR | SOT-23-3 | U2 |
| 1 | Conn_01x08_Pin | PinHeader_1x08_P2.54mm_Vertical | J1 |
| 1 | LED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 3 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C4 |
| 1 | 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 1 | 220 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
BMI320 design files
The KiCad project lives in the SohumNigam/StabilityBot_MK1 repository on GitHub; these links point at the commit this page was built from.
BMI320: common questions
How big is the BMI320 PCB?
The BMI320 measures 16 × 22 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the BMI320?
9 components, from 7 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the BMI320 design files?
From the SohumNigam/StabilityBot_MK1 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the BMI320 design in my own project?
The repository has no license, so all rights stay with SohumNigam. Use it as a reference, and ask the author before reusing the design.
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