# Cycle Sentry: 24-GHz Radar For Bicyclist Detection ## Description A PCB for automotive testing, featuring a 24 GHz radar system with an MCU for processing I&Q values. It connects to a frequency analyzer and uses CW and FMCW modes to detect bicyclists in blind spots of parked cars. ## Project Details - **Owner:** roytaylor - **Created:** 10/21/2023 - **Last Updated:** 6/5/2024 - **Visibility:** Public - **Stars:** 8 - **Forks:** 4 - **Copies:** 4 ## Key Components ### D1 — [1A Rectifier Diode](https://www.flux.ai/corynrobinson/1a-rectifier-diode~j2.md) - Package or Case Code: D_SMA - Part Type: Diode - Max Reverse Voltage: 600V - Purchase Url: https://octopart.com/s1j-e3%2F61t-vishay-39552151#CadModels - Datasheet URL: https://datasheet.octopart.com/S1J-E3-61T-Vishay-datasheet-10950683.pdf - Manufacturer Part Number: S1J-E3_61T - Current: 1A - Capacitance: 12pF - Manufacturer Name: Vishay - Forward Voltage: 1.1V **Pins:** - ANODE [pin 2] - CATHODE [pin 1] ### J1 — [AVR-JTAG-10 with text](https://www.flux.ai/vasy_skral/avr-jtag-10-with-text~qiy.md) - Datasheet URL: https://www.we-online.com/catalog/datasheet/61201021621.pdf - Manufacturer Name: Würth Elektronik - Part Type: Connector - Manufacturer Part Number: 61201021621 **Pins:** - GND [pin 10] - GND [pin 2] - nSRST [pin 6] - nTRST [pin 8] - TCK [pin 1] - TDI [pin 9] - TDO [pin 3] - TMS [pin 5] - VCC [pin 7] - VREF [pin 4] ### J2 — [TSW-103-26-G-D](https://www.flux.ai/adrian95/tsw-103-26-g-d~a21.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Samtec Inc. - Manufacturer Part Number: TSW-103-26-G-D - Datasheet URL: http://suddendocs.samtec.com/catalog_english/tsw_th.pdf - Part Type: Connector **Pins:** - 01 [pin 01] - 02 [pin 02] - 03 [pin 03] - 04 [pin 04] - 05 [pin 05] - 06 [pin 06] ### J3 — [Connector 01x04 Horizontal](https://www.flux.ai/jharwinbarrozo/connector-01x04-horizontal~h0.md) - Part Type: Connector **Pins:** - PIN_1 [pin 1] - PIN_2 [pin 2] - PIN_3 [pin 3] - PIN_4 [pin 4] ### J4 — [SMA-J-P-H-ST-EM1](https://www.flux.ai/jecstronic/sma-j-p-h-st-em1~0a1.md) - Manufacturer Name: Samtec Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: http://suddendocs.samtec.com/catalog_english/sma.pdf - Part Type: Connector - Manufacturer Part Number: SMA-J-P-H-ST-EM1 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### J5 — [SMA-J-P-H-ST-EM1](https://www.flux.ai/jecstronic/sma-j-p-h-st-em1~0a1.md) - Manufacturer Part Number: SMA-J-P-H-ST-EM1 - Part Type: Connector - Datasheet URL: http://suddendocs.samtec.com/catalog_english/sma.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Samtec Inc. **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### LED1 — [LED 0402](https://www.flux.ai/jecstronic/led-0402~lkg.md) - Part Type: LED - Manufacturer Name: Dialight - Datasheet URL: https://s3-us-west-2.amazonaws.com/catsy.557/C18402C.pdf - Manufacturer Part Number: 5988A10107F - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [LED 0402](https://www.flux.ai/jecstronic/led-0402~lkg.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 5988A10107F - Part Type: LED - Manufacturer Name: Dialight - Datasheet URL: https://s3-us-west-2.amazonaws.com/catsy.557/C18402C.pdf **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [LED 0402](https://www.flux.ai/jecstronic/led-0402~lkg.md) - Datasheet URL: https://s3-us-west-2.amazonaws.com/catsy.557/C18402C.pdf - Manufacturer Name: Dialight - Part Type: LED - Manufacturer Part Number: 5988A10107F - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### U1 — [IFX25401TEV50ATMA1](https://www.flux.ai/adrian95/ifx25401tev50atma1~hhb.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://datasheet.octopart.com/IFX25401TEV50ATMA1-Infineon-datasheet-27832381.pdf - Part Type: Integrated Circuit - Manufacturer Name: Infineon Technologies - Manufacturer Part Number: IFX25401TEV50ATMA1 **Pins:** - EN [pin 2] - GND [pin 3] - I [pin 1] - NC [pin 4] - Q [pin 5] ### U2 — [TL074CD](https://www.flux.ai/jecstronic/tl074cd~x1b.md) - Manufacturer Name: Texas Instruments - Manufacturer Part Number: TL074CD - Part Type: Operational Amplifier (OP-AMP) - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftl071a **Pins:** - -IN 1 [pin 2] - -IN 2 [pin 6] - -IN 3 [pin 9] - -IN 4 [pin 13] - +IN 1 [pin 3] - +IN 2 [pin 5] - +IN 3 [pin 10] - +IN 4 [pin 12] - OUT 1 [pin 1] - OUT 2 [pin 7] - OUT 3 [pin 8] - OUT 4 [pin 14] - V- [pin 11] - V+ [pin 4] ### U3 — BGT24LTR11N16 - Manufacturer Name: BGT24LTR11N16 - Datasheet URL: https://www.infineon.com/dgdl/Infineon-BGT24LTR11N16-DataSheet-v01_30-EN.pdf?fileId=5546d4625696ed7601569d2ae3a9158a - Operating Voltage: 3.3V **Pins:** - DIV_OUT [pin 8] - IFI [pin 7] - IFQ [pin 6] - R_TUNE [pin 13] - RX [pin 3] - TX [pin 11] - TX_EN [pin 5] - V_PTAT [pin 15] - V_TUNE [pin 14] - VCC [pin 1] - VCC_div [pin 9] - VCC_PTAT [pin 16] - VEE [pin 2] - VEE [pin 4] - VEE [pin 10] - VEE [pin 12] ### U4 — ATMEGA1284P-AU 3jfC e6b9 - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/ATmega164A_PA-324A_PA-644A_PA-1284_P_Data-Sheet-40002070B.pdf - Manufacturer Name: Microchip - Part Type: Microcontroller - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: ATMEGA1284P-AU **Pins:** - ~RESET [pin 4] - AREF [pin 29] - AVCC [pin 27] - GND [pin 18] - GND [pin 6] - GND [pin 39] - GND [pin 28] - PA0 [pin 37] - PA1 [pin 36] - PA2 [pin 35] - PA3 [pin 34] - PA4 [pin 33] - PA5 [pin 32] - PA6 [pin 31] - PA7 [pin 30] - PB0 [pin 40] - PB1 [pin 41] - PB2 [pin 42] - PB3 [pin 43] - PB4 [pin 44] - PB5 [pin 1] - PB6 [pin 2] - PB7 [pin 3] - PC0 [pin 19] - PC1 [pin 20] - PC2 [pin 21] - PC3 [pin 22] - PC4 [pin 23] - PC5 [pin 24] - PC6 [pin 25] - PC7 [pin 26] - PD0 [pin 9] - PD1 [pin 10] - PD2 [pin 11] - PD3 [pin 12] - PD4 [pin 13] - PD5 [pin 14] - PD6 [pin 15] - PD7 [pin 16] - VCC [pin 38] - VCC [pin 17] - VCC [pin 5] - XTAL1 [pin 8] - XTAL2 [pin 7] ### U5 — [LF33ABDT-TR](https://www.flux.ai/adrian95/lf33abdt-tr~clf.md) - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/c4/0e/7e/2a/be/bc/4c/bd/CD00000546.pdf/files/CD00000546.pdf/jcr:content/translations/en.CD00000546.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: STMicroelectronics - Manufacturer Part Number: LF33ABDT-TR - Part Type: Integrated Circuit **Pins:** - GND [pin 2] - VI [pin 1] - VO [pin 3] ### U6 — [MCP6001T-I-OT](https://www.flux.ai/jecstronic/mcp6001t-i-ot~s1u.md) - Part Type: Operational Amplifier (OP-AMP) - Manufacturer Name: Microchip Technology - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP6001-1R-1U-2-4-1-MHz-Low-Power-Op-Amp-DS20001733L.pdf - Manufacturer Part Number: MCP6001T-I/OT **Pins:** - - [pin 4] - + [pin 3] - OUTPUT [pin 1] - V- [pin 2] - V+ [pin 5] ### U7 — SN74LVC2G66YZPR - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SN74LVC2G66YZPR - Compliance: RoHS, Green, NIPDAU, SNAGCU, Level-1-260C-UNLIM - Package or Case Code: SOP65P490X110-9N - Datasheet URL: https://cdn2.flux.ai/copilot-datasheets/pdf-upload-0699c81c046c495671c2ee889af660663c2cf38787fd6efda4116cf0706a0ffe/2e9fec5f0a345c5f687397c30ea60d54bd9d0ad10817f9330bf6ae9361955d26.pdf?GoogleAccessId=graviton-mvp%40appspot.gserviceaccount.com&Expires=4862606185&Signature=B0P3C0WafLkMtfFDccwXNPTWjH5k8OdG9exjO8wDXfv6XQEt%2BLiBIPnuGHlvfZZm5zWs7URguAtXX%2BjEVYZzenneK5aa%2Br0NQomenzsNOtoSUEumTH9lymEkByXbndyl0wd7hV%2B00%2Fgp1FrpX%2BJCL8%2FY%2F2Hi2j1ErEA9r9gxNsIAyhUybKRHEdzBL35PLmy3ugn7xelW0d6aSxlqn6GBqY8d1aNzYVpofCJ96495GkMmrAUZ%2BulB6TgytVkkNwEmtjD5qt%2FgAJPIXCfV%2BCgWfltqV4ylppK2lAQ1ZnSodfyxrRjjaUNOZfq25%2BMHojz8etgbe6mYi%2FVtkHqjF4hutA%3D%3D **Pins:** - 1A [pin 1] - 1B [pin 2] - 1C [pin 7] - 2A [pin 5] - 2B [pin 6] - 2C [pin 3] - GND [pin 4] - Vcc [pin 8] ### U8 — SN74LVC2G66YZPR - Package or Case Code: SOP65P490X110-9N - Datasheet URL: https://cdn2.flux.ai/copilot-datasheets/pdf-upload-0699c81c046c495671c2ee889af660663c2cf38787fd6efda4116cf0706a0ffe/2e9fec5f0a345c5f687397c30ea60d54bd9d0ad10817f9330bf6ae9361955d26.pdf?GoogleAccessId=graviton-mvp%40appspot.gserviceaccount.com&Expires=4862606185&Signature=B0P3C0WafLkMtfFDccwXNPTWjH5k8OdG9exjO8wDXfv6XQEt%2BLiBIPnuGHlvfZZm5zWs7URguAtXX%2BjEVYZzenneK5aa%2Br0NQomenzsNOtoSUEumTH9lymEkByXbndyl0wd7hV%2B00%2Fgp1FrpX%2BJCL8%2FY%2F2Hi2j1ErEA9r9gxNsIAyhUybKRHEdzBL35PLmy3ugn7xelW0d6aSxlqn6GBqY8d1aNzYVpofCJ96495GkMmrAUZ%2BulB6TgytVkkNwEmtjD5qt%2FgAJPIXCfV%2BCgWfltqV4ylppK2lAQ1ZnSodfyxrRjjaUNOZfq25%2BMHojz8etgbe6mYi%2FVtkHqjF4hutA%3D%3D - Manufacturer Name: Texas Instruments - Part Type: Integrated Circuit - Compliance: RoHS, Green, NIPDAU, SNAGCU, Level-1-260C-UNLIM - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: SN74LVC2G66YZPR **Pins:** - 1A [pin 1] - 1B [pin 2] - 1C [pin 7] - 2A [pin 5] - 2B [pin 6] - 2C [pin 3] - GND [pin 4] - Vcc [pin 8] ### Y1 — [ABM7-16.000MHZ-D2Y-T](https://www.flux.ai/adrian95/abm7-16000mhz-d2y-t~mq5.md) - Frequency: 16MHz - Manufacturer Name: Abracon LLC - Manufacturer Part Number: ABM7-16.000MHZ-D2Y-T - Part Type: Oscillator - Datasheet URL: https://abracon.com/Resonators/abm7.pdf **Pins:** - P1 - P2 *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/roytaylor/cycle-sentry-24-ghz-radar-for-bicyclist-detection~n8](https://www.flux.ai/roytaylor/cycle-sentry-24-ghz-radar-for-bicyclist-detection~n8).* --- *Generated from [https://www.flux.ai/roytaylor/cycle-sentry-24-ghz-radar-for-bicyclist-detection~n8](https://www.flux.ai/roytaylor/cycle-sentry-24-ghz-radar-for-bicyclist-detection~n8)*