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STD fallout holotape
Mode: Editors' pick
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Update time：
2022-05-13 17:50:19
Creation time：
2021-01-04 01:56:31
Description
circuit for fallout style holotape.
powered via wireless charge coil.
data transmitted via a data send diode and two data receiver light receiver diodes.
data requests are getting send from a terminal to the device with a simple and robust protocol, processed on the micro controller and then passed through to the memory chip.
it is designed to use a 16mbit (2m*8) spi flash ic, larger memory chips could be used after code modifications
Design Drawing
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| ID | Name | Designator | Footprint | Quantity | BOM_Supplier | BOM_Manufacturer Part | BOM_Manufacturer | BOM_Supplier Part |
|---|---|---|---|---|---|---|---|---|
| 1 | 10uF | C1 | C0805 | 1 | LCSC | CL21A106KAYNNNE | SAMSUNG | C15850 |
| 2 | AT25SF161-SSHD-T | U2 | SOIC-8_L5.0-W4.0-P1.27-LS6.0-BL | 1 | LCSC | AT25SF161-SSHD-T | Adesto Technologies | C161762 |
| 3 | 100nF | C2 | C0603 | 1 | LCSC | CL10B104KB8NNNC | SAMSUNG | C1591 |
| 4 | ATTINY85-20SU | U1 | SOIC-8_L5.3-W5.3-P1.27-LS8.0-BL | 1 | LCSC | ATTINY85-20SU | MICROCHIP | C89852 |
| 5 | 17-21SURC | LED1 | LED0805-R-RD | 1 | LCSC | 17-21SURC/S530-A3/TR8 | EVERLIGHT | C72037 |
| 6 | PT12-21C/TR8 | IR1,IR2 | LED1206-R-RD | 2 | LCSC | PT12-21C/TR8 | EVERLIGHT | C53674 |
| 7 | 330R | R1,R2 | R0603 | 2 | LCSC | 0805W8J0331T5E | UniOhm | C25306 |
| 8 | 4.7K | R3,R4 | R0603 | 2 | LCSC | RS-05K472JT | FH | C115310 |
| 9 | 10K | R6,R9 | R0603 | 2 | LCSC | 0805W8J0103T5E | UniOhm | C25612 |
| 10 | 20K | R7 | R0603 | 1 | LCSC | RS-05K203JT | FH | C139905 |
| 11 | 10R | R8 | R0603 | 1 | LCSC | WR25X100JTL | WALSIN | C164035 |
| 12 | 20K | R5 | RES-ADJ-SMD_VG039NCH | 1 | LCSC | VG039NCHXTB203 | HDK | C128550 |
| 13 | C115427 | D1,D2 | SMA_L4.4-W2.8-LS5.4-RD | 2 | LCSC | RS1M | Jingdao | C115427 |
| 14 | 2N7002LT1G | Q1,Q2 | SOT-23_L2.9-W1.3-P0.95-LS2.4-BR | 2 | LCSC | 2N7002LT1G | ON | C16338 |
| 15 | ZM4728A | ZD1 | LL-41_L5.0-W2.5-LS5.0-RD | 1 | LCSC | ZM4728A | SEMTECH | C38989 |
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