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STD Data logger v2
License: MIT
Mode: Editors' pick
A custom data logger based on ATmega32u4 with a custom PCB.
The device features the following main components:
The coin cell was initially intended for powering the RTC as well as the MCU, but it turns out the SD card doesn't work with the battery voltage. As such, the 3-positions switch is omitted and the device needs power from the USB port (e.g. with power-bank). The battery is used for keeping the RTC settings in any case.
Code repository: https://github.com/beeb/ArduinoDatalogger
ID | Name | Designator | Footprint | Quantity | BOM_Supplier | BOM_Manufacturer | BOM_Manufacturer Part | BOM_Supplier Part |
---|---|---|---|---|---|---|---|---|
1 | 22 | R4,R5 | R0402 | 2 | LCSC | UniOhm | 0402WGF220JTCE | C25092 |
2 | 8MHz | X1 | OSC-SMD_L5.0-W3.2 | 1 | LCSC | YXC | X50328MSB2GI | C115962 |
3 | 20pF | C1,C2 | C0402 | 2 | LCSC | FH | 0402CG200J500NT | C1554 |
4 | SS14 | D1,D2 | SMA_L4.4-W2.8-LS5.4-RD | 2 | LCSC | MDD | SS14 | C2480 |
5 | WS2812B-B | LED3 | LED-SMD_4P-L5.0-W5.0-TL_WS2812B-B | 1 | LCSC | Worldsemi | WS2812B-B | C114586 |
6 | 10K | R1 | R0402 | 1 | LCSC | UniOhm | 0402WGF1002TCE | C25744 |
7 | 5.6K | R9,R10 | R0402 | 2 | LCSC | UniOhm | 0402WGF5601TCE | C25908 |
8 | 5.1K | R2,R3 | R0402 | 2 | LCSC | UniOhm | 0402WGF5101TCE | C25905 |
9 | RST | SW1 | KEY-TH_4P-L4.5-W4.5-P3.00-LS5.8 | 1 | LCSC | BRIGHT | TSA451G38-250 | C294482 |
10 | CR2032-BS-6-1 | B1 | BAT-TH_CR2032-BS-6-1 | 1 | LCSC | Q&J | CR2032-BS-6-1 | C70377 |
11 | SPI | J1 | HDR-TH_6P-P2.54-V-R2-C3-S2.54 | 1 | LCSC | Ckmtw | 210S-2*3P L=11.6MMGold-plated black | C124384 |
12 | RX | LED2 | LED0603-R-RD | 1 | LCSC | EVERLIGHT | 19-217/GHC-YR1S2/3T | C72043 |
13 | TYPEC-304S-ACP16 | USB1 | USB-C-SMD_TYPEC-304S-ACP16 | 1 | LCSC | XUNPU | TYPEC-304S-ACP16 | C720630 |
14 | TX | LED1 | LED0603-R-RD | 1 | LCSC | KENTO | KT-0603R | C2286 |
15 | ATMEGA32U4-MUR | U1 | VQFN-44_L7.0-W7.0-P0.50-BL-EP5.2 | 1 | LCSC | MICROCHIP | ATMEGA32U4-MUR | C45874 |
16 | 10uF | C3,C4 | C0402 | 2 | LCSC | SAMSUNG | CL05A106MQ5NUNC | C15525 |
17 | HDC1080DMBR | S1 | HDC1080DMBR | 1 | LCSC | TI | HDC1080DMBR | C82227 |
18 | 1uF | C5,C7,C8,C10,C11 | C0402 | 5 | LCSC | SAMSUNG | CL05A105KA5NQNC | C52923 |
19 | 100nF | C6,C9,C12 | C0402 | 3 | LCSC | SAMSUNG | CL05B104KO5NNNC | C1525 |
20 | 75 | R6,R7 | R0402 | 2 | LCSC | UniOhm | 0402WGF750JTCE | C25133 |
21 | SS-12D03-G3 | SW2 | SW-TH_SS-12D03-G3 | 1 | LCSC | USAKRO | SS-12D03-G3 | C698224 |
22 | AP2112K-3.3TRG1 | U3 | SOT-25-5_L3.0-W1.8-P0.95-LS3.0-BR | 1 | LCSC | DIODES | AP2112K-3.3TRG1 | C51118 |
23 | TF-15×15 | CARD1 | TF-SMD_TF-15-15 | 1 | LCSC | SOFNG | TF-15×15 | C111196 |
24 | DS3231M+TRL | U2 | SOIC-16_L10.3-W7.5-P1.27-LS10.3-BL | 1 | LCSC | MAXIM | DS3231M+TRL | C37663 |
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