2 layers62.6 × 67.4 mm
4 layers60.8 × 64.8 mm
LocketNfc
Kreyl/LocketNFCLocket with BT & NFC
- Size
- 60.8 × 64.8 mm
- Copper layers
- 4
- Thickness
- 4.18 mm
- Parts
- 166
- Nets
- 187
- Pads
- 590
- Tracks, vias
- 3,232, 658
- Pours
- 21
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 10 May 2022
- Updated
- 29 May 2022
Overview
LocketNfc is an open-source printed circuit board by Kreyl, from the Kreyl/LocketNFC repository on GitHub. It is a 4-layer board of 60.8 × 64.8 mm with 166 parts on 187 nets, routed with 3,232 tracks and 658 vias.
It is built around the STM32L476VET6, CC1101RGP and ESP32-WROOM-32, with the MFRC52202HN1, ST1S06PUR and BLM15AG102SN1 among its other parts. Its parts include 63 capacitors, 32 resistors, 10 inductors, 4 transistors and 4 switches. It belongs with the ESP32 and STM32 boards of this library.
Main components
10
STM32L476VET6
LQFP-100(14x14)-40℃~+85℃ 1.71V~3.6V 128KB 12bit 12bit 32 Bit 512KB 80MHz 82 ARM Cortex-M4 Built-in FLASH LQFP-100(14x14) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
CC1101RGP
QFN-20-EP(4x4)-116dBm -40℃~+85℃ 1.8V~3.6V 12.3mA 12dBm 14.3mA 600Kbps ISM SPI QFN-20-EP(4x4) RF Transceiver ICs ROHSTexas InstrumentsRF Transceiver ICs
ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
MFRC52202HN1
HVQFN-32-EP(5x5)106Kbit/s、212Kbit/s、424Kbit/s、848Kbit/s 13.56MHz 2.5V~3.6V Built-in antenna driver、Data verification、Low power wake-up I2C,SPI,UART ISO 14443A,MIFARE HVQFN-32-EP(5x5) RFID ICs ROHSNXP SemiconductorsRF Chips
ST1S06PUR
DFN-6(3x3)-30℃~+85℃@(TJ) 1 1.5A 1.5MHz 2.7V~6V 800mV~5.22V Adjustable Buck Buck Built-in Yes DFN-6(3x3) DC-DC Converters ROHSSTMicroelectronicsDC-DC Converters
BLM15AG102SN1
04021 1kΩ@100MHz 300mA 650mΩ ±25% 0402 Ferrite Beads ROHSMurataFerrite Beads
IRLML6401
SOT-23-55℃~+150℃ 1 P-Channel 1.3W 125pF 12V 15nC@5V 180pF 4.3A 830pF 85mΩ@1.8V 950mV P-Channel SOT-23 MOSFETs ROHSKEXINMOSFETs
PMEG2020EH
SOD-123F1 Independent 200uA@20V 20V 2A 525mV@2A 9A SOD-123F Schottky Diodes ROHSNexperiaSchottky Diodes
LSM6DS3
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 8KB Accelerometer Gyroscope SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps LGA-14(2.5x3) Accelerometers ROHSSTMicroelectronicsAccelerometers
TP4056
ESOP-8-40℃~+85℃ 1 1A 35uA 4.2V 4V~6.5V Charging IC Lithium Battery Support Support 恒流充电、恒压充电、涓流充电、自动再充电、充电终止、可编程充电电流、软启动、欠压锁定 ESOP-8 Battery Management ROHSUMWBattery Management
Parts
166| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 0.1u | Capacitors:CAP_0603_Silks | C3, C10, C11, C15, C21, C27, C30, C34, C37, C40, C43, C46, C49, C51, C52, C53 +8 |
| 14 | TESTPOINT | PCB:TESTPOINT_1MM | TP1, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13, TP17, TP18 |
| 10 | 10u | Capacitors:CAP_0603_Silks | C4, C13, C17, C25, C31, C44, C45, C47, C48, C56 |
| 6 | * | Capacitors:CAP_0603_Silks | C35, C36, C38, C39, C41, C42 |
| 6 | 100k | Resistors:RES_0603 | R2, R3, R11, R12, R15, R22 |
| 6 | 18pF | Capacitors:CAP_0603_Silks | C1, C2, C18, C22, C28, C29 |
| 5 | 10k | Resistors:RES_0603 | R6, R26, R27, R31, R32 |
| 5 | 1u | Capacitors:CAP_0603_Silks | C14, C16, C19, C20, C23 |
| 5 | 56k | Resistors:RES_0603 | R14, R17, R28, R29, R30 |
| 5 | HOLE_METALLED | PCB:Hole2d2_out3d5mm | HOLE1, HOLE2, HOLE3, HOLE4, HOLE5 |
| 4 | REFPOINT | PCB:REF_POINT_1MM | RP1, RP2, RP3, RP4 |
| 3 | CONN_3 | Connectors:PLS-3 | XL4, XL5, XL7 |
| 3 | IT1198 | BtnsSwitches:BTN_IT1198 | SW2, SW3, SW4 |
| 2 | * | Capacitors:CAP_0402 | C24, C50 |
| 2 | 0R | Resistors:RES_0603 | R18, R19 |
| 2 | 1.5pF | Capacitors:CAP_0402 | C122, C131 |
| 2 | 100pF | Capacitors:CAP_0402 | C124, C125 |
| 2 | 12nH | Inductors:IND_0402 | L121, L131 |
| 2 | 18k | Resistors:RES_0603 | R7, R20 |
| 2 | 18nH | Inductors:IND_0402 | L122, L132 |
| 2 | 1k | Resistors:RES_0603 | R4, R13 |
| 2 | 220pF | Capacitors:CAP_0603_Silks | C32, C33 |
| 2 | 560nH | Inductors:IND_0805 | L2, L3 |
| 2 | 5k1 | Resistors:RES_0603 | R1, R5 |
| 2 | BLM15AG102SN1 | Inductors:IND_0402 | L1, L5 |
| 2 | CONN_1 | PCB:Oval3x1.5 | XL11, XL12 |
| 2 | CONN_1 | Connectors:PLS-1Square | XL8, XL9 |
| 2 | IRLML6401 | SOT:SOT23-3 | Q1, Q2 |
| 2 | MCP1700 | SOT:SOT23-3 | DA2, DA3 |
| 2 | PMEG2020 | Diodes:SOD323 | D1, D2 |
| 1 | * | Inductors:IND_0402 | L6 |
| 1 | 0R2 | Resistors:RES_1206 | R9 |
| 1 | 1.2k | Resistors:RES_0603 | R10 |
| 1 | 10n | Capacitors:CAP_0603_Silks | C12 |
| 1 | 12MHz | Quartz:03225C4 | XTAL1 |
| 1 | 150R | Resistors:RES_0603 | R25 |
| 1 | 1nF | Capacitors:CAP_0603_Silks | C26 |
| 1 | 1pF | Capacitors:CAP_0402 | C121 |
| 1 | 2.2uH | Inductors:IND_SRN2512 | L4 |
| 1 | 2.7k | Resistors:RES_0603 | R16 |
| 1 | 27.12MHz | Quartz:0503x4-4 | XTAL2 |
| 1 | 27MHz | Quartz:03225C4 | XTAL3 |
| 1 | 2R0 | Resistors:RES_0603 | R8 |
| 1 | 2u2 | Capacitors:CAP_0603_Silks | C5 |
| 1 | 330R | Resistors:RES_0603 | R24 |
| 1 | 5k6 | Resistors:RES_0603 | R21 |
| 1 | 68R | Resistors:RES_0603 | R23 |
| 1 | ANT_PCB_MONO_2PIN | Antennas:LocketNFC_inverted | ANT1 |
| 1 | CC1101 | QFN_DFN:QFN20 | DD3 |
| 1 | CONN_1 | Connectors:PLS-1Rnd | XL13 |
| 1 | CONN_2 | Connectors:SLD_2_2D5 | XL2 |
| 1 | CONN_6 | Connectors:PLS-6_LOCK | XL1 |
| 1 | CONN_MICROSD | Installation:MICROSD_EJECTOR_TFWF1 | XL6 |
| 1 | ESP32-WROOM-32 | Modules:ESP32WROOM32 | MDL1 |
| 1 | Fuse0R | Resistors:RES_0603_FUSE | F1 |
| 1 | IRLML2030 | SOT:SOT23-3 | Q4 |
| 1 | LED_RGB 5050 | LEDs:LED_5050 | Q3 |
| 1 | LSM6DS3 | LGA:14_3x2d5_p0d5 | DD4 |
| 1 | Logo | Pictures:Ostranna_12d7_10d1 | Logo1 |
| 1 | MFRC52202 | QFN_DFN:QFN32_EP_5x5_Pitch0.5mm | DD2 |
| 1 | MOTOR_NO_CONTACTS | Installation:Motor_no_Contacts | M1 |
| 1 | ST1S06 | QFN_DFN:DFN6_3x3 | DA4 |
| 1 | STM32L476VET6 | LQFP_TQFP:LQFP100 | DD1 |
| 1 | SWITCH | BtnsSwitches:SW_SS-1P2T_Housing | SW1 |
| 1 | TP4056 | SO_DIL_TSSOP:SO8_150MIL | DA1 |
| 1 | USB_C | Connectors:USB_C_MOLEX_1054500101 | XL3 |
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Questions
How big is the LocketNfc PCB?
It measures 60.8 × 64.8 mm and has 4 copper layers, 4.18 mm thick.
What parts does the LocketNfc use?
166 parts, built around the STM32L476VET6, CC1101RGP, ESP32-WROOM-32 and MFRC52202HN1. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the LocketNfc KiCad files?
From the Kreyl/LocketNFC repository on GitHub, at the commit this page was made from: the board is LocketNfc_hw/LocketNfc.kicad_pcb and its schematic LocketNfcAntPcb/LocketNfcAntPcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LocketNfc design in my own project?
Its repository states no licence, so its author keeps all rights: ask Kreyl before reusing the design.