# Magic Turquoise Mr. Fusion ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** mastertherion - **Created:** 3/8/2026 - **Last Updated:** 3/8/2026 - **Visibility:** Public - **System Architecture:** ```mermaid flowchart TD subgraph Power [Power] BAT["Li Ion 3.7V"] --> VBAT["VBAT"] VBAT --> LDO_AVDD["Low noise LDO AVDD"] VBAT --> REG_3V3["Regulator 3V3 Digital"] end subgraph AFE [ADS1299 AFE] ELEC["Electrode inputs CH1-CH8"] --> IN_FILT["Series R + RC filter per channel"] IN_FILT --> ADS["ADS1299"] ADS --> REF_ELEC["Reference electrode"] ADS --> BIAS["Bias drive BIASOUT/BIASINV"] BIAS --> DRL_ELEC["Bias/DRL electrode"] end subgraph MCU [MCU + RF] NRF["nRF52840"] --> ANT["RF match + antenna keepout"] XTAL32M["32 MHz crystal"] --> NRF XTAL32K["32.768 kHz crystal optional"] --> NRF SWD["SWD header"] --> NRF end ADS <-->|"SPI MOSI MISO SCLK CS"| NRF ADS <-->|"DRDY START RESET"| NRF LDO_AVDD -->|"AVDD"| ADS REG_3V3 -->|"3V3"| NRF AGND["AGND plane"] --- STAR["Star point"] --- DGND["DGND plane"] ADS --- AGND NRF --- DGND ``` - **Copies:** 1 ## Key Components ### FB1 — [BLM15PX600BH1D](https://www.flux.ai/jecstronic/blm15px600bh1d.md) - Role: Filter - Role Details: Ferrite bead for analog rail isolation - Package: SMD_0402_1005Metric - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: BLM15PX600BH1D - Part Type: Filter - Datasheet URL: https://www.murata.com/products/productdata/8817911136286/QNFA9176.pdf - Manufacturer Name: Murata Electronics **Pins:** - 1 [pin 1] - 2 [pin 2] ### J1 — [ARM JTAG SWD 10Pin 0.05" Connector](https://www.flux.ai/vasy_skral/arm-jtag-swd-10pin-005-connector.md) - Package: Header 1.27mm - Datasheet URL: https://suddendocs.samtec.com/catalog_english/ftsh_smt.pdf - Manufacturer Name: Analog Devices - Part Type: Connector - Role Details: ARM 10-pin SWD header (SWDIO/SWCLK/RESET/VCC/GND) - Manufacturer Part Number: FTSH-105-01-L-DV-007-K - Role: Debug **Pins:** - ~RESET~ [pin 10] - GND [pin 5] - GND [pin 3] - GNDDetect [pin 9] - NC/TDI [pin 8] - SWDCLK/TCK [pin 4] - SWDIO/TMS [pin 2] - SWO/TDO [pin 6] - VTref [pin 1] ### J10 — [Connector 01x04_2.00mm](https://www.flux.ai/jecstronic/connector-01x042p00mm.md) - Role: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Package: Header 1x4 2.00mm - Role Details: Bias/DRL and REF electrode connections **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### J2 — [U.FL-R-SMT-1](https://www.flux.ai/vasy_skral/ufl-r-smt-1.md) - Package: U.FL - Part Type: Connector - Role: RF Connector - Role Details: Optional U.FL 50ohm antenna feed - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/Hirose%20PDFs/UFL%20Series.pdf - Manufacturer Part Number: U.FL-R-SMT-1 - Manufacturer Name: Hirose Electric Co Ltd **Pins:** - 1 [pin 1] - 2 [pin 2-1] - 3 [pin 2-2] ### J3 — [S2B-PH-SM4-TB(LF)(SN)](https://www.flux.ai/adrian95/s2b-ph-sm4-tblfsn.md) - Role Details: VBAT battery input 2-pin JST-PH - Manufacturer Name: JST Sales America Inc. - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/ePH.pdf - Part Type: Connector - Role: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: S2B-PH-SM4-TB(LF)(SN) - Package: JST-PH-2-SMD-RA **Pins:** - P1 [pin 1] - P2 [pin 2] ### J4 — [X1321WR-2x10J-C40D18](https://www.flux.ai/markwuflux/x1321wr-2x10j-c40d18.md) - Role Details: Bring out SPI/control lines for debug - Role: Test Header - Manufacturer Part Number: X1321WR-2x10J-C40D18 - Package: Header 2x10 1.27mm - Manufacturer Name: XKB Connectivity - Datasheet URL: https://datasheet.lcsc.com/lcsc/2110120130_XKB-Connectivity-X1321WR-2x10J-C40D18_C2881830.pdf **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J5 — [Connector 01x08 0.100 SMD Pin1Right](https://www.flux.ai/vasy_skral/connector-01x08-0100-smd-pin1right.md) - Package: SMD header 1x8 2.54mm - Part Type: Connector - Role: Connector - Role Details: Electrode inputs (use as 8-pin blocks; CH5-CH8 optional) - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### J6 — [Connector 01x08 0.100 SMD Pin1Right](https://www.flux.ai/vasy_skral/connector-01x08-0100-smd-pin1right.md) - Part Type: Connector - Role: Connector - Package: SMD header 1x8 2.54mm - Role Details: Electrode inputs (use as 8-pin blocks; CH5-CH8 optional) - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### J7 — [Connector 01x08 0.100 SMD Pin1Right](https://www.flux.ai/vasy_skral/connector-01x08-0100-smd-pin1right.md) - Role: Connector - Part Type: Connector - Package: SMD header 1x8 2.54mm - Role Details: Electrode inputs (use as 8-pin blocks; CH5-CH8 optional) - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### J8 — [Connector 01x08 0.100 SMD Pin1Right](https://www.flux.ai/vasy_skral/connector-01x08-0100-smd-pin1right.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Electrode inputs (use as 8-pin blocks; CH5-CH8 optional) - Role: Connector - Part Type: Connector - Package: SMD header 1x8 2.54mm **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### J9 — [Connector 01x04_2.00mm](https://www.flux.ai/jecstronic/connector-01x042p00mm.md) - Package: Header 1x4 2.00mm - Role Details: Bias/DRL and REF electrode connections - Role: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] ### U1 — [ADS1299IPAGR](https://www.flux.ai/adrian95/ads1299ipagr.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/ads1299.pdf - Manufacturer Part Number: ADS1299IPAGR - Manufacturer Name: Texas Instruments - Role Details: TI ADS1299 8ch EEG AFE - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Package: TQFP-64 - Role: AFE **Pins:** - ~CS [pin 39] - ~DRDY [pin 47] - ~PWDN [pin 35] - ~RESET [pin 36] - AVDD_1 [pin 19] - AVDD_2 [pin 22] - AVDD_3 [pin 23] - AVDD_4 [pin 56] - AVDD_5 [pin 59] - AVDD1 [pin 54] - AVSS_1 [pin 20] - AVSS_2 [pin 21] - AVSS_3 [pin 32] - AVSS_4 [pin 57] - AVSS_5 [pin 58] - AVSS1 [pin 53] - BIASIN [pin 62] - BIASINV [pin 61] - BIASOUT [pin 63] - BIASREF [pin 60] - CLK [pin 37] - CLKSEL [pin 52] - DAISY_IN [pin 41] - DGND_1 [pin 33] - DGND_2 [pin 49] - DGND_3 [pin 51] - DIN [pin 34] - DOUT [pin 43] - DVDD_1 [pin 48] - DVDD_2 [pin 50] - GPIO1 [pin 42] - GPIO2 [pin 44] - GPIO3 [pin 45] - GPIO4 [pin 46] - IN1N [pin 15] - IN1P [pin 16] - IN2N [pin 13] - IN2P [pin 14] - IN3N [pin 11] - IN3P [pin 12] - IN4N [pin 9] - IN4P [pin 10] - IN5N [pin 7] - IN5P [pin 8] - IN6N [pin 5] - IN6P [pin 6] - IN7N [pin 3] - IN7P [pin 4] - IN8N [pin 1] - IN8P [pin 2] - NC_1 [pin 27] - NC_2 [pin 29] - RESERVED [pin 64] - RESV1 [pin 31] - SCLK [pin 40] - SRB1 [pin 17] - SRB2 [pin 18] - START [pin 38] - VCAP1 [pin 28] - VCAP2 [pin 30] - VCAP3 [pin 55] - VCAP4 [pin 26] - VREFN [pin 25] - VREFP [pin 24] ### U2 — [nRF52840](https://www.flux.ai/vasyl/nrf52840.md) - Datasheet URL: https://infocenter.nordicsemi.com/pdf/nRF52840_PS_v1.5.pdf - Package: QFN-73 - Manufacturer Part Number: NRF52840-QIAA-R - Manufacturer Name: Nordic Semiconductor ASA - Part Type: Microcontroller - Role: MCU - Role Details: Nordic nRF52840 BLE MCU **Pins:** - AIN0/P0.02 [pin A12] - AIN1/P0.03 [pin B13] - AIN2/P0.04 [pin J1] - AIN3/P0.05 [pin K2] - AIN4/P0.28 [pin B11] - AIN5/P0.29 [pin A10] - AIN6/P0.30 [pin B9] - AIN7/P0.31 [pin A8] - ANT [pin H23] - D- [pin AD4] - D+ [pin AD6] - DCC [pin B3] - DCCH [pin AB2] - DEC1 [pin C1] - DEC2 [pin A18] - DEC3 [pin D23] - DEC4 [pin B5] - DEC5 [pin N24] - DEC6 [pin E24] - DECUSB [pin AC5] - NFC1/P0.09 [pin L24] - NFC2/P0.10 [pin J24] - P0.06 [pin L1] - P0.08 [pin N1] - P0.13 [pin AD8] - P0.14 [pin AC9] - P0.15 [pin AD10] - P0.16 [pin AC11] - P0.17 [pin AD12] - P0.18/~RESET [pin AC13] - P0.19 [pin AC15] - P0.20 [pin AD16] - P0.21 [pin AC17] - P0.22 [pin AD18] - P0.23 [pin AC19] - P0.24 [pin AD20] - P0.25 [pin AC21] - P0.26 [pin G1] - P0.27 [pin H2] - P1.01 [pin Y23] - P1.02 [pin W24] - P1.03 [pin V23] - P1.04 [pin U24] - P1.05 [pin T23] - P1.06 [pin R24] - P1.07 [pin P23] - P1.08 [pin P2] - P1.10 [pin A20] - P1.11 [pin B19] - P1.12 [pin B17] - P1.13 [pin A16] - P1.14 [pin B15] - P1.15 [pin A14] - SWDCLK [pin AA24] - SWDIO [pin AC24] - TRACECLK/P0.07 [pin M2] - TRACEDATA0/P1.00 [pin AD22] - TRACEDATA1/P0.12 [pin U1] - TRACEDATA2/P0.11 [pin T2] - TRACEDATA3/P1.09 [pin R1] - VBUS [pin AD2] - VDD [pin AD14] - VDD [pin W1] - VDD [pin A22] - VDD [pin AD23] - VDD [pin B1] - VDDH [pin Y2] - VSS [pin EP] - VSS [pin B7] - VSS_PA [pin F23] - XC1 [pin B24] - XC2 [pin A23] - XL1/P0.00 [pin D2] - XL2/P0.01 [pin F2] ### U3 — [TPS7A0230PDQNR](https://www.flux.ai/lcsc/tps7a0230pdqnr.md) - Package: X2SON-4 - Package or Case Code: UDFN-4_L1.0-W1.0-P0.65-TL - JLCPCB Part Class: Extended Part - Part Type: Linear Voltage Regulators (LDO) - LCSC Part Number: C2867950 - Manufacturer Name: TI(德州仪器) - Manufacturer Part Number: TPS7A0230PDQNR - Role Details: Low-noise LDO generating AVDD from VBAT - Role: Regulator **Pins:** - EN [pin 3] - EP [pin 5] - GND [pin 2] - IN [pin 4] - OUT [pin 1] ### U4 — [TPS7A2033PDBVR](https://www.flux.ai/lcsc/tps7a2033pdbvr.md) - LCSC Part Number: C2862740 - Package: SOT-23-5 - Manufacturer Name: TI(德州仪器) - Manufacturer Part Number: TPS7A2033PDBVR - Package or Case Code: SOT-23-5_L2.9-W1.6-P0.95-LS2.8-BR - Role: Regulator - JLCPCB Part Class: Extended Part - Role Details: 3.3V LDO generating 3V3 from VBAT **Pins:** - EN [pin 3] - GND [pin 2] - IN [pin 1] - NC [pin 4] - OUT [pin 5] ### U5 — [ADS1299IPAGR](https://www.flux.ai/adrian95/ads1299ipagr.md) - Package: TQFP-64 - License: https://creativecommons.org/licenses/by/4.0/ - Role: AFE - Role Details: TI ADS1299 8ch EEG AFE - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/lit/ds/symlink/ads1299.pdf - Manufacturer Part Number: ADS1299IPAGR **Pins:** - ~CS [pin 39] - ~DRDY [pin 47] - ~PWDN [pin 35] - ~RESET [pin 36] - AVDD_1 [pin 19] - AVDD_2 [pin 22] - AVDD_3 [pin 23] - AVDD_4 [pin 56] - AVDD_5 [pin 59] - AVDD1 [pin 54] - AVSS_1 [pin 20] - AVSS_2 [pin 21] - AVSS_3 [pin 32] - AVSS_4 [pin 57] - AVSS_5 [pin 58] - AVSS1 [pin 53] - BIASIN [pin 62] - BIASINV [pin 61] - BIASOUT [pin 63] - BIASREF [pin 60] - CLK [pin 37] - CLKSEL [pin 52] - DAISY_IN [pin 41] - DGND_1 [pin 33] - DGND_2 [pin 49] - DGND_3 [pin 51] - DIN [pin 34] - DOUT [pin 43] - DVDD_1 [pin 48] - DVDD_2 [pin 50] - GPIO1 [pin 42] - GPIO2 [pin 44] - GPIO3 [pin 45] - GPIO4 [pin 46] - IN1N [pin 15] - IN1P [pin 16] - IN2N [pin 13] - IN2P [pin 14] - IN3N [pin 11] - IN3P [pin 12] - IN4N [pin 9] - IN4P [pin 10] - IN5N [pin 7] - IN5P [pin 8] - IN6N [pin 5] - IN6P [pin 6] - IN7N [pin 3] - IN7P [pin 4] - IN8N [pin 1] - IN8P [pin 2] - NC_1 [pin 27] - NC_2 [pin 29] - RESERVED [pin 64] - RESV1 [pin 31] - SCLK [pin 40] - SRB1 [pin 17] - SRB2 [pin 18] - START [pin 38] - VCAP1 [pin 28] - VCAP2 [pin 30] - VCAP3 [pin 55] - VCAP4 [pin 26] - VREFN [pin 25] - VREFP [pin 24] ### U6 — [nRF52840](https://www.flux.ai/vasyl/nrf52840.md) - Datasheet URL: https://infocenter.nordicsemi.com/pdf/nRF52840_PS_v1.5.pdf - Manufacturer Part Number: NRF52840-QIAA-R - Package: QFN-73 - Role: MCU - Manufacturer Name: Nordic Semiconductor ASA - Part Type: Microcontroller - Role Details: Nordic nRF52840 BLE MCU **Pins:** - AIN0/P0.02 [pin A12] - AIN1/P0.03 [pin B13] - AIN2/P0.04 [pin J1] - AIN3/P0.05 [pin K2] - AIN4/P0.28 [pin B11] - AIN5/P0.29 [pin A10] - AIN6/P0.30 [pin B9] - AIN7/P0.31 [pin A8] - ANT [pin H23] - D- [pin AD4] - D+ [pin AD6] - DCC [pin B3] - DCCH [pin AB2] - DEC1 [pin C1] - DEC2 [pin A18] - DEC3 [pin D23] - DEC4 [pin B5] - DEC5 [pin N24] - DEC6 [pin E24] - DECUSB [pin AC5] - NFC1/P0.09 [pin L24] - NFC2/P0.10 [pin J24] - P0.06 [pin L1] - P0.08 [pin N1] - P0.13 [pin AD8] - P0.14 [pin AC9] - P0.15 [pin AD10] - P0.16 [pin AC11] - P0.17 [pin AD12] - P0.18/~RESET [pin AC13] - P0.19 [pin AC15] - P0.20 [pin AD16] - P0.21 [pin AC17] - P0.22 [pin AD18] - P0.23 [pin AC19] - P0.24 [pin AD20] - P0.25 [pin AC21] - P0.26 [pin G1] - P0.27 [pin H2] - P1.01 [pin Y23] - P1.02 [pin W24] - P1.03 [pin V23] - P1.04 [pin U24] - P1.05 [pin T23] - P1.06 [pin R24] - P1.07 [pin P23] - P1.08 [pin P2] - P1.10 [pin A20] - P1.11 [pin B19] - P1.12 [pin B17] - P1.13 [pin A16] - P1.14 [pin B15] - P1.15 [pin A14] - SWDCLK [pin AA24] - SWDIO [pin AC24] - TRACECLK/P0.07 [pin M2] - TRACEDATA0/P1.00 [pin AD22] - TRACEDATA1/P0.12 [pin U1] - TRACEDATA2/P0.11 [pin T2] - TRACEDATA3/P1.09 [pin R1] - VBUS [pin AD2] - VDD [pin AD14] - VDD [pin W1] - VDD [pin A22] - VDD [pin AD23] - VDD [pin B1] - VDDH [pin Y2] - VSS [pin EP] - VSS [pin B7] - VSS_PA [pin F23] - XC1 [pin B24] - XC2 [pin A23] - XL1/P0.00 [pin D2] - XL2/P0.01 [pin F2] ### U7 — [TPS7A0230PDQNR](https://www.flux.ai/lcsc/tps7a0230pdqnr.md) - Part Type: Linear Voltage Regulators (LDO) - LCSC Part Number: C2867950 - Package: X2SON-4 - JLCPCB Part Class: Extended Part - Package or Case Code: UDFN-4_L1.0-W1.0-P0.65-TL - Manufacturer Part Number: TPS7A0230PDQNR - Role Details: Low-noise LDO generating AVDD from VBAT - Role: Regulator - Manufacturer Name: TI(德州仪器) **Pins:** - EN [pin 3] - EP [pin 5] - GND [pin 2] - IN [pin 4] - OUT [pin 1] ### U8 — [TPS7A2033PDBVR](https://www.flux.ai/lcsc/tps7a2033pdbvr.md) - LCSC Part Number: C2862740 - Role Details: 3.3V LDO generating 3V3 from VBAT - Role: Regulator - Package: SOT-23-5 - Package or Case Code: SOT-23-5_L2.9-W1.6-P0.95-LS2.8-BR - JLCPCB Part Class: Extended Part - Manufacturer Name: TI(德州仪器) - Manufacturer Part Number: TPS7A2033PDBVR **Pins:** - EN [pin 3] - GND [pin 2] - IN [pin 1] - NC [pin 4] - OUT [pin 5] ### X1 — [CS06654-32M](https://www.flux.ai/jecstronic/cs06654-32m.md) - Role Details: 32 MHz HFCLK crystal for nRF52840 - Manufacturer Part Number: CS06654-32M - License: https://creativecommons.org/licenses/by/4.0/ - Role: Clock - Package: SMD_2016 - Manufacturer Name: NDK America, Inc. - Datasheet URL: https://www.ndk.com/images/products/catalog/c_NX2016SA_e.pdf - Part Type: Oscillator **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### X2 — [ECS-.327-6-34QCS-TR](https://www.flux.ai/adrian95/ecs-p327-6-34qcs-tr.md) - Package: SMD - License: https://creativecommons.org/licenses/by/4.0/ - Role: Clock - Manufacturer Name: ECS Inc. - Role Details: Optional 32.768 kHz LFCLK watch crystal (CL=6pF in library) - Datasheet URL: https://ecsxtal.com/store/pdf/ECX-34Q.pdf - Manufacturer Part Number: ECX-.327-CDX-2096 - Part Type: Oscillator **Pins:** - 1 [pin 1] - 2 [pin 2] ### Y1 — [2450AT18B100E](https://www.flux.ai/jecstronic/2450at18b100e.md) - Part Type: Antenna - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.snapeda.com/parts/2450AT18B100E/Johanson%20Technology/datasheet/ - Role: Antenna - Manufacturer Name: Johanson Technology - Manufacturer Part Number: 2450AT18B100E - Package: SMD - Role Details: 2.4GHz chip antenna (optional if using U.FL) **Pins:** - 1 [pin 1] - 2 [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/mastertherion/magic-turquoise-mrp-fusion](https://www.flux.ai/mastertherion/magic-turquoise-mrp-fusion).* --- *Generated from [https://www.flux.ai/mastertherion/magic-turquoise-mrp-fusion](https://www.flux.ai/mastertherion/magic-turquoise-mrp-fusion)*