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STD ESP32-PICO-D4 smart watch
Profile：ESP32-based ultra-low power multi-function watch
License: CC-BY-NC-SA 3.0
Description
project from OSHWHub user 启凡科技
Real computer projection demo link: https://www.bilibili.com/video/BV1WR4y1H72X?share_source=copy_web
Thickness: The whole machine is the same as the Redmi watch at 10.8mm (450mah 403040 lithium battery)
Lowest Power Standby Mode: 37uA
The main power consumption comes from the DCDC chip (TYP17uA), if you are not short of money, you can choose a chip with lower static power consumption
Exchange group number: 216066270
log:
2021-12-17
1) The MPU adds POWER enable, and the power can be turned off when not in use
2) Change to 4-layer board design
3) The antenna and light sensor are moved up by 0.6mm to better receive the external optical fiber conduction
4) Complete shell modeling design and verification
Some notes:
1) The battery is 403040 450mah with a thickness of 10.8. If you use 300mah, it can be thinner by 1mm
2) I am very busy and have little time to write software, but I will update the progress in a long-term unstable time
2021-10-29
1) Add an external RTC to prevent other people from adjusting the internal RTC oscillator error calibration, and also bring lower standby current (specifically, the hardware has been tested)
2) The serial port chip is changed to the cheaper CH9012, the rate is increased to 4Mbps, double that of CP2014, and the download is fast
3) The basic test package is not yet adapted to RTC management
2021-10-20
1) Upload the basic test SDK package and use it as follows:
The environment is the Arduino development mode project created under the Platform IDE
Uncomment the two lines in the setup to test the lowest power consumption. Comment out to test whether all peripherals are working properly.
Probably the bottom-level stuff is written, and then the APP can be developed on the basis
main part:
1) Master ESP32
2) 1.28-inch round screen (without touch screen, why not use touch screen, because it is poor)
characteristic:
1.With vibrator
2.wifi bluetooth
3.UART+ automatic download
4.Ambient Light Sensing
5.Gyroscope, accelerometer
6.Lithium battery power management
7.Low static power dcdc
8.Environmental temperature and humidity sensor
9.Four programmable keys
10Screen, temperature and humidity sensor, ambient light sensor power enable controllable
11.Power plug-in identification.
Extended use:
1) Somatosensory remote control (games, model airplanes, remote control cars...)
2) Game console
3) Mini extended data display
4) Smart Home Controller
5) Most of the functions of other smart watches (except GPS\NFC\heart rate, etc.)
...
If you can't even buy components, then you are not suitable for this project, stop it Awei, start with the simple
Don’t remind me to add GPS, heart rate, etc. I don’t need those functions, thank you
PCB proofing thickness 0.8mm
Welding is very difficult without steel mesh and heating table, and you can match it yourself whether you can weld
The project has just started. The hardware is open source first. You can write your own software.
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | JLCPCB Part Class | |
|---|---|---|---|---|---|---|
| 1 | 10uF | C1,C2,C6,C17 | CAP 0603 | 4 | cap 0603 | |
| 2 | 4.7uF | C3,C11 | CAP 0603 | 2 | cap 0603 | |
| 3 | 0.1uF | C4,C7,C8,C9,C10,C12,C16 | CAP 0603 | 7 | cap 0603 | |
| 4 | 2.2nF | C5 | CAP 0603 | 1 | cap 0603 | |
| 5 | 0.01uF | C13 | CAP 0603 | 1 | cap 0603 | |
| 6 | 9pF | C14 | CAP 0603 | 1 | cap 0603 | |
| 7 | 9pf | C15 | CAP 0603 | 1 | cap 0603 | |
| 8 | 1uF | C18 | CAP 0603 | 1 | cap 0603 | |
| 9 | T4 | D1 | SOD-323_L1.8-W1.3-LS2.5-RD | 1 | 1N4148WS-T4 | |
| 10 | OA-C07 | L1 | OA-C07 | 1 | OA-C07 | |
| 11 | 2.2uH | L2 | IND-SMD_L2.5-W2.0_SWPA252012S | 1 | SWPA252012S2R2N | |
| 12 | TFT_1.28_GC9A01_CB0.8 | LCD1 | TFT_1.28_GC9A01_CB0.8_IC1.5 | 1 | TFT_1.28_GC9A01_CB0.8 | |
| 13 | AO3400 | Q1,Q4 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | 2 | AO3400_C841146 | |
| 14 | AO3401 | Q2,Q5,Q6 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | 3 | AO3401 | |
| 15 | BC847 | Q3 | SOT-363_L2.0-W1.3-P0.65-LS2.1-TL | 1 | BC847BS,115 | |
| 16 | 300K | R1 | RES-0603 | 1 | res-0603 | |
| 17 | 75K | R2 | RES-0603 | 1 | res-0603 | |
| 18 | 2.7M | R3 | RES-0603 | 1 | res-0603 | |
| 19 | 3.3 | R4,R13 | RES-0603 | 2 | res-0603 | |
| 20 | 39K | R5 | RES-0603 | 1 | res-0603 | |
| 21 | 910K | R6 | RES-0603 | 1 | res-0603 | |
| 22 | 3M | R7 | RES-0603 | 1 | res-0603 | |
| 23 | 10K | R8,R9,R12 | RES-0603 | 3 | res-0603 | |
| 24 | 330 | R10 | RES-0603 | 1 | res-0603 | |
| 25 | 100 | R11 | RES-0603 | 1 | res-0603 | |
| 26 | 20K | R14 | RES-0603 | 1 | res-0603 | |
| 27 | 100K | R15,R17 | RES-0603 | 2 | res-0603 | |
| 28 | 10k | R16,R18 | RES-0603 | 2 | res-0603 | |
| 29 | * | R21 | RES-0603 | 1 | res-0603 | |
| 30 | 轻触开关小龟 | SW1,SW2,SW3,SW4 | 轻触开关小龟 | 4 | 轻触开关小龟 | https://item.taobao.com/item.htm?id=522575825388 |
| 31 | ESP32-PICO-D4 | U1 | QFN-48_L7.0-W7.0-P0.50-BL-EP5.1 | 1 | ESP32-PICO-D4 | |
| 32 | MPU6050 | U2 | QFN24_L4.0-W4.0-P0.5-TL-EP2.45 | 1 | MPU6050 | |
| 33 | SGM40561-4.2YTDE8G/TR | U3 | TDFN-8L_L2.0-W2.0-P0.50-BL-EP | 1 | SGM40561-4.2YTDE8G/TR | |
| 34 | SHTC3 | U4 | SENSORM-SMD_4P-L2.0-W2.0-P1.00 | 1 | SHTC3 | |
| 35 | motor_shock_1020 | U5 | MOTOR_1020 | 1 | motor_shock_1020 | |
| 36 | BM8563EMA | U7 | MSOP-8_L3.0-W3.0-P0.65-LS5.0-BL | 1 | BM8563EMA | |
| 37 | MP2162GQH-Z | U8 | QFN-8_L2.0-W1.5-P0.50-BL | 1 | MP2162GQH-Z | |
| 38 | CH9102F | U10 | QFN-24_L4.0-W4.0-P0.50-BL-EP2.5 | 1 | CH9102F | |
| 39 | TEMT6000X01 | U14 | SENSORS-SMD_TEMT6000X01 | 1 | TEMT6000X01 | |
| 40 | TYPE-C-16M-005 | USB1 | USB-C-SMD_TYPE-C-16M-005 | 1 | TYPE-C-16M-005 | |
| 41 | 32.768KHz | X1 | OSC-SMD_L3.2-W1.5 | 1 | FC-135R |
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