FreeEEG
eric5512
An open hardware EEG system implementation
Components (48)
| Reference | Value | Description |
|---|---|---|
| IC1 | ICM-42670-P | IMUs - Inertial Measurement Units Low-Power, Premium Performance 6-Axis MotionTrackingTM IMU with I3C, I2C and SPI interface in 2.5mm x 3mm Package |
| IC2 | BQ25185DLHR | Battery Management NPI 1-CELL 1A STANDALONE LNR HRGR |
| U1 | ADS1299 | Low-Noise, 8-channel, 24-bit ADC for EEG and Biopotential Measurements, TQFP-64 |
| U3 | ESP32-S3-WROOM-1 | RF Module, ESP32-S3 SoC, Wi-Fi 802.11b/g/n, Bluetooth, BLE, 32-bit, 3.3V, onboard antenna, SMD |
| U4 | OPA376xxDBV | Single Low-Noise, Low Quiescent Current, Precision Operational Amplifier e-trim Series, SOT-23-5 |
| U7 | TPS610997YFFR | 0.7Vin Synchronous Boost Converter with 800 nA Ultra-Low Quiescent Current |
| U8 | TPS628438DRL | 600mA Step-Down Converter with DCS-Control, ultra-low Iq, 1.8-5.5 Vin, 1.8-3.6 Vout, SOT-563 |
| C1,C5-C7,C28,C31,C50,C51 | 10u | Unpolarized capacitor |
| C2,C30,C46-C48 | 10n | Unpolarized capacitor |
| C3,C25-C27,C34,C35,C37,C38,C40,C42,C44,C49,C52,L1 | 1u | Inductor LQM2HPN1R0MG0L,Unpolarized capacitor |
| C4 | 100n | Unpolarized capacitor |
| C24 | 4.7n | Unpolarized capacitor |
| C29 | 4.7u | Unpolarized capacitor |
| C32,C36,C39,C41,C43,C45 | 0.1u | Unpolarized capacitor |
| C33 | 100u | Unpolarized capacitor |
| D1 | LED_AMBAR | Light emitting diode |
| D2 | LED_BLUE | Light emitting diode |
| D3 | WS2812B | RGB LED with integrated controller |
| J1 | ConnElectrodes | Generic connector, double row, 02x10, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| J2 | 10137065-00021LF | |
| J5 | B2B-PH-SM4-TBT_LF | PH Series 2 mm Pitch 2 Position SMT Single Row Top Entry Fully Shrouded Header |
| J6 | ExtTrig | Generic connector, double row, 02x03, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
| L2 | 2.2u | Inductor PIS2D18LP-2R2M-T |
| MICRO_SD1 | TF-01A | |
| MK1 | ICS-43434 | TDK InvenSense MEMS Microphone, 24-bit I2S, 65 dBA SNR, LGA-6 |
| R1-R5,R12,R13,R15,R35,R40,R45 | 10k | Resistor |
| R6,R7 | 5.1k | Resistor |
| R8-R11 | 33k | Resistor |
| R14 | 249k | Resistor |
| R16 | 13k | Resistor |
| R17 | 619 | Resistor |
| R18 | 22k | Resistor |
| R19 | 150 | Resistor |
| R20 | 120 | Resistor |
| R31,R49 | 4.99k | Resistor |
| R34 | 50k | Resistor |
| R36 | 392k | Resistor |
| R37,R38 | 2M | Resistor |
| R39 | 100k | Resistor |
| R47,R48 | 4.7k | Resistor |
| RN1-RN4 | R_Pack04_SIP_Split | 4 resistor network, parallel topology, SIP package, split |
| SW1 | ON_SW | Switch, single pole double throw |
| SW2 | SEL_SW | Switch, single pole double throw |
| SW3 | RST_BTN | Push button switch, generic, two pins |
| TP1 | REF_TEST | test point |
| TP2 | GND_TEST | test point |
| TP3 | 3V3_TEST | test point |
| TP4 | 5V_TEST | test point |