Maker project
只有三个键的键盘
BOM000218 · v1.0
What the project is · as the catalogue files it; the circuit functions below are BOM rule hits
Filed under “智能硬件” in the ezPLM catalogue.
Circuit functions included · BOM rule hits · not reviewed
- 8-bit MCU (AVR / PIC / 8051 / STM8)
- U1 ATMEGA32U4 · by part number
- EEPROM
- U2, U3 24LC512 · by part number
Helper circuits
- Crystal / oscillator
- X1 XTAL_GND · by part number
- USB connector (Type-C / Micro / A)
- J1 USB_mini_micro_B · by part number
Online view
Loading the project view…
15 rows · 50 parts0 of 15 rows placedHover or click a row to mark its parts in the view; click a part in the view to find its row.
Looks up part numbers and makers at ezPLM, DigiKey and Mouser. What it finds are suggestions: check one before you use it.
| Designators | Value | Part | Qty | Placed | |
|---|---|---|---|---|---|
| U1 | ATMEGA32U4 | No part number | 1 | ||
| U2, U3 | 24LC512 | No part number | 2 | ||
| R5, R6, R7, R8, R9 | 220R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | 220 | 5 | ||
| R10, R11 | 4.7kR_0805_2012Metric_Pad1.15x1.40mm_HandSolder | 4.7k | 2 | ||
| X1 | XTAL_GNDcrystal_FA238-TSX3225 | XTAL_GND | 1 | ||
| SW1 | SW_PUSHSW_PTS526_SK08_SMTR2_LFS | SW_PUSH | 1 | ||
| R3, R4 | 22R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | 22 | 2 | ||
| C8 | 1uC_0805_2012Metric_Pad1.15x1.40mm_HandSolder | 1u | 1 | ||
| K1, K2, K3 | KEYSWMx_Alps_100 | KEYSW | 3 | ||
| J1 | USB_mini_micro_BGCT_USB3070-XX-X_REVE | USB_mini_micro_B | 1 | ||
| 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, B, ERR, G, PROG, R, STATUS | LEDLED_D3.0mm | LED | 22 | ||
| C3, C4, C5, C6 | 0.1uC_0805_2012Metric_Pad1.15x1.40mm_HandSolder | 0.1u | 4 | ||
| R1, R2 | 10kR_0805_2012Metric_Pad1.15x1.40mm_HandSolder | 10k | 2 | ||
| C1, C2 | 22pC_0805_2012Metric_Pad1.15x1.40mm_HandSolder | 22p | 2 | ||
| C7 | 4.7uC_0805_2012Metric_Pad1.15x1.40mm_HandSolder | 4.7u | 1 |