Board Information

Every identified IC in the Humane Ai Pin, organized by board and side. Identifications sourced from iFixit’s Chip ID guide. For internal photos showing component placement, see Teardown.

Main Board — Side 1

Processor & Memory

PartManufacturerFunction
SM7125-100-ABQualcommSnapdragon 720G SoC — 8nm, 2x A76 + 6x A55, Adreno 618, Spectra 350L, X15 LTE, 5th Gen AI Engine
32EM32-M4DTX29Kingston32GB eMMC + 4GB LPDDR4X eMCP

Power

PartManufacturerFunction
STWLC86STMicroelectronicsWireless power receiver (Qi-compatible)
MAX77839CAnalog DevicesBuck-boost converter
TPS22930ATexas InstrumentsLoad switch (5.5V, 4A, 18mΩ)

Security & Control

PartManufacturerFunction
ST33KSTMicroelectronicsSecure element
CY8C4045FNI-S412TInfineonPSoC 4000S MCU (Cortex-M0) — likely touchpad controller

Audio

PartManufacturerFunction
WSA8810-0VVQualcommMono Class-D speaker amplifier (Aqstic)

LED Driver

PartManufacturerFunction
LED1202STMicroelectronics12-channel LED driver — drives Trust Light (3 RGB) + Beacon (1 RGB)

Sensors

PartManufacturerFunction
STMicroelectronics6-axis accelerometer + gyroscope (IMU)
MMC5633NJLMEMSIC3-axis magnetometer (±30 Gauss, I2C/SPI)

RF Front-End

PartManufacturerFunction
SKYA24000SkyworksFront-end module
SKY77643-61SkyworksMultimode multiband PA module

Main Board — Side 2

Power & Charging

PartManufacturerFunction
PM6250-102QualcommPrimary PMIC (Snapdragon 720G companion)
PM6150A-102QualcommSecondary PMIC
BQ25175Texas InstrumentsLinear battery charger (50-500mA)

Microcontroller

PartManufacturerFunction
STM32F410TBSTMicroelectronicsCortex-M4 MCU (100MHz, 128KB Flash) — sensor hub or peripheral management

Connectivity

PartManufacturerFunction
WCN3988-000QualcommWi-Fi 802.11ac (2x2 MIMO) + Bluetooth 5.0 + FM
SDR675-005QualcommRF transceiver (X15 LTE companion)
SKY53735-61SkyworksDiversity receive module (LNA + filter)
SKY13351-378LFSkyworksGaAs SPDT RF switch (0.1-6.0GHz)

Laser Projector Board — Side 1

The projector has its own dedicated PCB, connected to the main board via flex cable.

Motor Control & Power

PartManufacturerFunction
STMicroelectronicsMEMS mirror driver (drives Castor + Pollux mirrors)
MP3438GTLMonolithic Power SystemsBoost converter (2.5-22V in, up to 36V out) — MEMS drive voltage
INA280A1QDCKRQ1Texas InstrumentsCurrent sense amplifier (automotive-grade) — laser diode monitoring

Laser Projector Board — Side 2

Digital Control

PartManufacturerFunction
LIFCL-17-8UWG72CLattice SemiconductorCrossLink-NX FPGA (17K LUTs, 72-ball csBGA) — mirror/laser timing coordination
STM32F412RGSTMicroelectronicsCortex-M4 MCU (100MHz, 1MB Flash, 256KB RAM) — projector controller

Laser Driver

PartManufacturerFunction
STLDDxSTMicroelectronicsLaser diode driver — 498nm single-diode, 10ns-20µs variable pulse

MEMS Mirrors

MirrorShapeFunction
CastorCircularResonant — sweeps horizontal scanlines at fixed frequency
PolluxRectangularQuasi-static — positions each scanline vertically

Architecture

┌─────────────────────────────────────────────────┐
│ MAIN BOARD                                      │
│                                                 │
│  Snapdragon 720G ─── Kingston eMCP              │
│  (SoC)               (4GB + 32GB)               │
│    ├── Spectra 350L ISP ── 13MP Camera           │
│    ├── X15 LTE Modem                             │
│    │     ├── SDR675 Transceiver                  │
│    │     ├── SKY77643 PA                         │
│    │     └── SKY53735 / SKY13351 / SKYA24000     │
│    └── AI Engine                                │
│                                                 │
│  WCN3988 (Wi-Fi ac + BT 5.0)                   │
│  PM6250 + PM6150A (PMICs)                       │
│  STWLC86 (Wireless Power Rx) ── Battery         │
│  BQ25175 (Charger)                              │
│  MAX77839C (Buck-Boost)                         │
│  STM32F410TB (Sensor MCU)                       │
│  CY8C4045FNI (Touchpad MCU)                     │
│  ST33K (Secure Element)                         │
│  LED1202 ── Trust Light + Beacon                │
│  WSA8810 ── Speaker                             │
│  IMU + MMC5633NJL + ALS + iToF                  │
│                                                 │
├──────────── flex cable ─────────────────────────┤
│                                                 │
│ PROJECTOR BOARD                                 │
│  LIFCL-17 FPGA ── STM32F412RG MCU              │
│  STLDDx Driver ── 498nm Laser Diode             │
│  ST MEMS Driver ── Castor (H) + Pollux (V)     │
│  MP3438GTL (Boost) + INA280A1 (Current Sense)  │
└─────────────────────────────────────────────────┘

Board Photos

FCC internal photos showing PCB layout and component placement. Click any thumbnail for the full resolution image.

References