# AAI Rhythm Board ## Description Heart rate monitoring device design ## Project Details - **Owner:** iiakilii - **Created:** 2/6/2024 - **Last Updated:** 2/3/2025 - **Visibility:** Public ## Key Components ### BAT1 — [Battery Holder Keystone 1076 1xAAA](https://www.flux.ai/vasy_skral/battery-holder-keystone-1076-1xaaa~jqn.md) - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/userAssets/file/M65p24.pdf - Manufacturer Part Number: 1076 - Part Type: Connector **Pins:** - NEGATIVE [pin -] - POSITIVE [pin +] ### D1 — [1N4004](https://www.flux.ai/jecstronic/1n4004~a6t.md) - Part Type: Diode - Manufacturer Part Number: 1N4004 - Manufacturer Name: NTE Electronics, Inc - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n4001-d.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - anode [pin 2] - cathode [pin 1] ### D2 — [1N4004](https://www.flux.ai/jecstronic/1n4004~a6t.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n4001-d.pdf - Manufacturer Name: NTE Electronics, Inc - Manufacturer Part Number: 1N4004 - Part Type: Diode **Pins:** - anode [pin 2] - cathode [pin 1] ### D3 — [1N4004](https://www.flux.ai/jecstronic/1n4004~a6t.md) - Manufacturer Part Number: 1N4004 - Part Type: Diode - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n4001-d.pdf - Manufacturer Name: NTE Electronics, Inc - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - anode [pin 2] - cathode [pin 1] ### D4 — [1N4004](https://www.flux.ai/jecstronic/1n4004~a6t.md) - Manufacturer Part Number: 1N4004 - Part Type: Diode - Datasheet URL: https://www.onsemi.com/pdf/datasheet/1n4001-d.pdf - Manufacturer Name: NTE Electronics, Inc - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - anode [pin 2] - cathode [pin 1] ### J2 — [PJ-037A](https://www.flux.ai/vasy_skral/pj-037a~6cq.md) - Datasheet URL: https://www.cuidevices.com/product/resource/pj-037a.pdf - Manufacturer Name: CUI Devices - Manufacturer Part Number: PJ-037A - Part Type: Connector **Pins:** - Center pin [pin 1] - Terminal [pin 2] ### K1 — [SRD-12VDC-SL-C](https://www.flux.ai/jecstronic/srd-12vdc-sl-c~ofu.md) - Manufacturer Name: Ningbo Songle Relay - Manufacturer Part Number: SRD-12VDC-SL-C - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2304140030_Ningbo-Songle-Relay-SRD-12VDC-SL-C_C30431.pdf - Part Type: Relay - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - COIL1 [pin COIL1] - COIL2 [pin COIL2] - COM [pin COM] - NC [pin NC] - NO [pin NO] ### LED1 — [LED 0805 (2012 Metric)](https://www.flux.ai/vasyl/led-0805-2012-metric~sr7.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LED 0805 (2012 Metric)](https://www.flux.ai/vasyl/led-0805-2012-metric~sr7.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### PS1 — [HLK-10M05](https://www.flux.ai/iiakilii/hlk-10m05~sj.md) - Manufacturer Part Number: HLK-10M05 **Pins:** - -V0 [pin 3] - +V0 [pin 4] - AC_1 [pin 1] - AC_2 [pin 2] ### Q1 — [2N2222AUB](https://www.flux.ai/jecstronic/2n2222aub~0jf.md) - Part Type: Transistor - Datasheet URL: https://www.ttelectronics.com/TTElectronics/media/ProductFiles/Datasheet/2N2222AUB.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 2N2222AUB - Manufacturer Name: TT Electronics/Optek Technology **Pins:** - B [pin 1] - C [pin 2] - E [pin 3] ### U1 — [PIC16F877A-I/P](https://www.flux.ai/adrian95/pic16f877a-ip~h1l.md) - Manufacturer Name: Microchip Technology - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/39582C.pdf - Manufacturer Part Number: PIC16F877A-I/P - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Microcontroller **Pins:** - ~MCLR~/VPP [pin 1] - OSC1/CLKI [pin 13] - OSC2/CLKO [pin 14] - RA0/AN0 [pin 2] - RA1/AN1 [pin 3] - RA2/AN2/VREF-/CVREF [pin 4] - RA3/AN3/VREF+ [pin 5] - RA4/T0CKI/C1OUT [pin 6] - RA5/AN4/~SS~/C2OUT [pin 7] - RB0/INT [pin 33] - RB1 [pin 34] - RB2 [pin 35] - RB3/PGM [pin 36] - RB4 [pin 37] - RB5 [pin 38] - RB6/PGC [pin 39] - RB7/PGD [pin 40] - RC0/T1OSO/T1CKI [pin 15] - RC1/T1OSI/CCP2 [pin 16] - RC2/CCP1 [pin 17] - RC3/SCK/SCL [pin 18] - RC4/SDI/SDA [pin 23] - RC5/SDO [pin 24] - RC6/TX/CK [pin 25] - RC7/RX/DT [pin 26] - RD0/PSP0 [pin 19] - RD1/PSP1 [pin 20] - RD2/PSP2 [pin 21] - RD3/PSP3 [pin 22] - RD4/PSP4 [pin 27] - RD5/PSP5 [pin 28] - RD6/PSP6 [pin 29] - RD7/PSP7 [pin 30] - RE0/~RD~/AN5 [pin 8] - RE1/~WR~/AN6 [pin 9] - RE2/~CS~/AN7 [pin 10] - VDD_1 [pin 11] - VDD_2 [pin 32] - VSS_1 [pin 12] - VSS_2 [pin 31] ### U2 — [LM7805CT/NOPB](https://www.flux.ai/adrian95/lm7805ctnopb~wo3.md) - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: LM7805CT/NOPB - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm340.pdf **Pins:** - GND [pin 2] - VI [pin 1] - VO [pin 3] ### U3 — [LM016L](https://www.flux.ai/jecstronic/lm016l~rw3.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: Hitachi - Manufacturer Name: Hitachi - Datasheet URL: https://datasheetspdf.com/pdf/1462370/Hitachi/LM016L/1 - Part Type: LCD **Pins:** - DB0 [pin 7] - DB1 [pin 8] - DB2 [pin 9] - DB3 [pin 10] - DB4 [pin 11] - DB5 [pin 12] - DB6 [pin 13] - DB7 [pin 14] - E [pin 6] - R/W [pin 5] - RS [pin 4] - VDD [pin 2] - VO [pin 3] - VSS [pin 1] ### X1 — [449-LFXTAL036391BULK](https://www.flux.ai/jecstronic/449-lfxtal036391bulk~gjo.md) - Manufacturer Name: IQD - Part Type: Oscillator - Frequency: 16MHz - Manufacturer Part Number: LFXTAL036391Bulk - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.mouser.co.uk/datasheet/2/741/LFXTAL036391Bulk-998594.pdf **Pins:** - P1 [pin 1] - P2 [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/iiakilii/aai-rhythm-board~n0](https://www.flux.ai/iiakilii/aai-rhythm-board~n0).* --- *Generated from [https://www.flux.ai/iiakilii/aai-rhythm-board~n0](https://www.flux.ai/iiakilii/aai-rhythm-board~n0)*