Krishnawa/BEEWATCH1ESP32 S3 Based smartwatch
BEEWATCH MK2 is an open-source printed circuit board by Krishnawa, from the Krishnawa/BEEWATCH repository on GitHub. It is a 4-layer board of 82.8 × 47.3 mm with 136 parts on 132 nets, routed with 1,101 tracks and 269 vias.
It is built around the ESP32-S3FH4R2, LTC3549EDCB#TRMPBF and ME6217C33M5G, with the MPU-6050, S-1206B18-M3T1G and DMG6968U among its other parts. Its parts include 53 resistors, 31 capacitors, 9 transistors, 7 ICs and 4 diodes. It belongs with the ESP32 and NXP (LPC, Kinetis, i.MX RT) boards of this library.
To properly set up this project, follow these steps:
Use the --recurse-submodules flag to clone the repository along with its submodules:
git clone --recurse-submodules https://github.com/Krishnawa/BEEWATCH.gitIf you have already cloned the repository without submodules, initialize and update them manually:
git submodule update --init --recursive --remote| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 0 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R13, R14, R28, R29, R30, R38, R39, R41, R42, R43, R48, R49, R51, R52, R53 |
| 13 | 10K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R3, R5, R17, R24, R31, R32, R33, R34, R37, R44, R45, R47, R50 |
| 8 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C20, C21, C25, C26, C27, C29, C30, C31 |
| 6 | , , , , , | ||
| 6 | LOGO | LOGO | G***, G***, G***, G***, G***, G*** |
| 4 | 0.1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C9, C10, C11, C23 |
| 4 | 4.7K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R11, R12, R15, R16 |
| 4 | DMG6968U | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q4, Q9 |
| 3 | 22 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R7, R8, R19 |
| 3 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q5, Q6, Q7 |
| 3 | VAL** | Panelization:mouse-bite-2.54mm-slot | mouse-bite-2.54mm-slot, mouse-bite-2.54mm-slot, mouse-bite-2.54mm-slot |
| 3 | ZLLS410TA | Diode_SMD:D_SOD-323F | D2, D3, D4 |
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C15, C17 |
| 2 | 100 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R9, R46 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C7, C22 |
| 2 | 12pF | Capacitor_SMD:C_0201_0603Metric | C3, C4 |
| 2 | 14pF | Capacitor_SMD:C_0201_0603Metric | C1, C2 |
| 2 | 1K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R6, R40 |
| 2 | 1M | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R18, R25 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C5, C8 |
| 2 | 220 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R21, R22 |
| 2 | 5K1 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R2 |
| 2 | 5M | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R4, R23 |
| 2 | Conn_02x06_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x06_P1.27mm_Vertical_SMD | J3, J4 |
| 2 | DMP1045U-7 | Package_TO_SOT_SMD:SOT-23-3 | Q3, Q8 |
| 2 | K10K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R35, R36 |
| 2 | TK-074-4 | SM_SWITCH:Tact Switch-TK-074-4 Pin SMD | SW1, SW2 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2 |
| 1 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C18 |
| 1 | 0R | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C12 |
| 1 | 100K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R26 |
| 1 | 10nF | Capacitor_SMD:C_0603_1608Metric | C14 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C6 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C24 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C19 |
| 1 | 2.2nF | Capacitor_SMD:C_0603_1608Metric | C16 |
| 1 | 220pF | Capacitor_SMD:C_0603_1608Metric | C28 |
| 1 | 22K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R20 |
| 1 | 2nH | Inductor_SMD:L_0402_1005Metric | L1 |
| 1 | 3.3uH | Inductor_SMD:L_Cenker_CKCS3012 | L3 |
| 1 | 3.7V 400mAh | BATTERY:WLY902025 | BT1 |
| 1 | 32.768KHz | Crystal:Crystal_SMD_EuroQuartz_EQ161-2Pin_3.2x1.5mm | Y2 |
| 1 | 4.7nF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C13 |
| 1 | 40MHz | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | 47K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R10 |
| 1 | 5.6nH | Inductor_SMD:L_0402_1005Metric | L2 |
| 1 | 51K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R27 |
| 1 | Buzzer | SM_BUZZER:CL9032A-CLDZ-SMD Passive Buzzer | BZ1 |
| 1 | CA-C03 | ANTENNA:ESP32_ZERO_ANT | AE1 |
| 1 | ESP32-S3FH4R2 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP4x4mm | U1 |
| 1 | GC9A01 | DISPLAY:GC9A01_BOTTOM | DS1 |
| 1 | LOGO | Project:meme_2 | meme_2 |
| 1 | LTC3549EDCB#TRMPBF | SM_BUCK:SON50P300X200X80-7N-D | U2 |
| 1 | MCP73832-2-OT | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | ME6217C33M5G | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | MPU-6050 | Sensor_Motion:InvenSense_QFN-24_4x4mm_P0.5mm | U3 |
| 1 | RYS8830 | REYAS:RYS8830 | U7 |
| 1 | S-1206B18-M3T1G | Package_TO_SOT_SMD:SOT-23-3 | U8 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J1 |
| 1 | WS2812B-0807 | SM_LED:XL-0807RGBC-WS2812B | D1 |
It measures 82.8 × 47.3 mm and has 4 copper layers, 1.6 mm thick.
136 parts, built around the ESP32-S3FH4R2, LTC3549EDCB#TRMPBF, ME6217C33M5G and MPU-6050. 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.
From the Krishnawa/BEEWATCH repository on GitHub, at the commit this page was made from: the board is Kicad/BEEWATCH MK2/BEEWATCH MK2.kicad_pcb and its schematic Kicad/BEEWATCH MK2/BEEWATCH MK2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask Krishnawa before reusing the design.
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