# WiFi RF-ID lock reference design vnb3 ## Description This project is a WiFi RF-ID Lock, which uses a Espressif ESP-8684 microcontroller for WiFi connectivity and a Handson Technology RC522 for RF-ID functionality. It also includes an OLED display and user control via a switch. A step-up power converter ensures consistent 3.3V power. #WiFi #MCU #ReferenceDesign #project #ESP8684 #lock #OLED #referenceDesign #simple-embedded #espressif #template #reference-design ## Project Details - **Owner:** team0321 - **Created:** 2/14/2026 - **Last Updated:** 2/14/2026 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ ## Key Components ### BAT1 — [Battery Holder Keystone 1076 1xAAA](https://www.flux.ai/vasy_skral/battery-holder-keystone-1076-1xaaa.md) - Manufacturer Name: Keystone Electronics - Part Type: Connector - Datasheet URL: https://www.keyelco.com/userAssets/file/M65p24.pdf - Manufacturer Part Number: 1076 **Pins:** - NEGATIVE [pin -] - POSITIVE [pin +] ### BOOT — [PTS815](https://www.flux.ai/vasy_skral/pts815.md) - Manufacturer Name: C&K - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Part Type: Switch **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### EN — [PTS815](https://www.flux.ai/vasy_skral/pts815.md) - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Manufacturer Name: C&K - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS - Part Type: Switch **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] ### IC1 — [TPS613221ADBVR](https://www.flux.ai/vasyl/tps613221adbvr.md) - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%253A%252F%252Fwww.ti.com%252Flit%252Fgpn%252Ftps61322 - Part Type: Integrated Circuit - Manufacturer Part Number: TPS613221ADBVR **Pins:** - GND [pin 2] - NC [pin 3] - NC [pin 5] - SW [pin 1] - VOUT [pin 4] ### LOCK — [TerminalBlock-01x02P-3.50mm](https://www.flux.ai/vasy_skral/terminalblock-01x02p-350mm.md) - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### OLED1 — [OLED 0.91" 128x32 I2C](https://www.flux.ai/vasy_skral/oled-091-128x32-i2c.md) - Part Type: Display Device **Pins:** - 5V [pin 3] - GND [pin 4] - SCL [pin 2] - SDA [pin 1] ### PROG — [Pin Header 01x06 2.54mm Vertical](https://www.flux.ai/vasy_skral/pin-header-01x06-254mm-vertical.md) - 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] - Pin_5 [pin 5] - Pin_6 [pin 6] ### U1 — [ESP8684-WROOM-02C](https://www.flux.ai/vasyl/esp8684-wroom-02c.md) - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp8684-wroom-02c_datasheet_en.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: WiFi Module - Manufacturer Name: espressif - Manufacturer Part Number: ESP8684-WROOM-02C **Pins:** - 3V3 [pin 1] - EN [pin 2] - GND [pin 9] - GND__3 [pin 19] - IO0 [pin 18] - IO1 [pin 17] - IO10 [pin 10] - IO18 [pin 14] - IO2 [pin 16] - IO3 [pin 15] - IO4 [pin 3] - IO5 [pin 4] - IO6 [pin 5] - IO7 [pin 6] - IO8 [pin 7] - IO9 [pin 8] - NC [pin 13] - RXD [pin 11] - TXD [pin 12] ### U2 — [RC522 RFID](https://www.flux.ai/jecstronic/rc522-rfid.md) - Part Type: Module - Manufacturer Part Number: RC522 - Manufacturer Name: Handson Technology - Datasheet URL: http://www.handsontec.com/dataspecs/RC522.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - GND [pin 3] - IRQ [pin 4] - MISO/SCL/Tx [pin 5] - MOSI [pin 6] - RST [pin 2] - SCK [pin 7] - SS/SDA/Rx [pin 8] - VCC [pin 1] ### USER — [PTS815](https://www.flux.ai/vasy_skral/pts815.md) - Datasheet URL: https://www.ckswitches.com/media/2728/pts815.pdf - Manufacturer Name: C&K - Part Type: Switch - Manufacturer Part Number: PTS815 SJM 250 SMTR LFS **Pins:** - ~1 [pin 1] - ~2 [pin 2] - ~3 [pin 3] - ~4 [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/team0321/wifi-rf-id-lock-reference-design-vnb3](https://www.flux.ai/team0321/wifi-rf-id-lock-reference-design-vnb3).* --- *Generated from [https://www.flux.ai/team0321/wifi-rf-id-lock-reference-design-vnb3](https://www.flux.ai/team0321/wifi-rf-id-lock-reference-design-vnb3)*