Story
This is my development board for ch32x033 designed for learning and at the same time usable as a keychain, usb hw key for passwords...
WS2812-2020 :
LED POWER:
U1:
H1, microUSB:
CHARGER:
BATTERY POWER:
TOUCH IC:
Keychain mode:
-LED, LIR2032 battery or other Lion, Charger, LED power off , VCC Power Off When USB Plugged In(PR4,R4,Q1),
-NO usb data
-DON'T USE NON-RECHARGEABLE BATTERIES LIKE CR2032 !!!
- OR DO NOT CONNECT USB IF USING NON-RECHARGEABLE BATTERIES (CR2032 ...)!!!
-OR REMOVE BATTERIES BEFORE CONNECTING THE USB!!!
| ID | Name | Designator | Footprint | Quantity | Manufacturer Part | Price |
| 1 | CR2032_C9900001893 | BT1 | BAT-SMD_CR2032 | 1 | CR2032 | |
| 2 | 4.7u | C1 | C1206 | 1 | ||
| 3 | 0.1u | C2,C3,C4,C5 | C0603 | 4 | ||
| 4 | 18pF | CT1,CT2 | C0603 | 2 | HGC0603G0180J500NTHJ | 0.003 |
| 5 | 0R | F1 | R0805 | 1 | ||
| 6 | WS2812B-2020 | LED1,LED2,LED3,LED4 | LED-SMD_4P-L2.0-W2.0-TL_WS2812B-2020 | 4 | WS2812B-2020 | 0.076 |
| 7 | LTC4054ES5-4.2#PBF | NAB1 | SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BL | 1 | LTC4054ES5-4.2#PBF | 5.451 |
| 8 | LED-0603_R | NLED1 | LED0603_RED | 1 | 19-217/R6C-AL1M2VY/3T | 0.019 |
| 9 | 0R | PR4 | R0402 | 1 | ||
| 10 | SI2305 | Q1,Q2 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | 2 | SI2305 | 0.032 |
| 11 | 10k | R1,R4 | R0603 | 2 | ||
| 12 | 330R | R2 | R0603 | 1 | ||
| 13 | 20k | R3 | R0603 | 1 | ||
| 14 | 100R | R7 | R0603 | 1 | ||
| 15 | Touchpoint | TP1,TP2 | TOUCHPOINT | 2 | ||
| 16 | TTP223-BA6 | TTP1,TTP2 | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL | 2 | TTP223-BA6 | 0.159 |
| 17 | CH32X033F8P6 | U1 | TSSOP-20_L6.5-W4.4-P0.65-LS6.4-BL | 1 | CH32X033F8P6 | 0.413 |
| 18 | U-F-M5SS-W-5 | USB1 | MICRO-USB-SMD_MICRO-USB-A9 | 1 | U-F-M5SS-W-5 | 0.083 |
USB mode:
-LED, LIR2032 battery or other Lion, Charger, LED power off , VCC is connected to the battery using the PR1.
-USB can be used as a HID keyboard, CDC...
-DON'T USE NON-RECHARGEABLE BATTERIES LIKE CR2032 OR REMOVE BATTERIES BEFORE CONNECTING THE USB!!!
| ID | Name | Designator | Footprint | Quantity | Price |
| 1 | CR2032_C9900001893 | BT1 | BAT-SMD_CR2032 | 1 | |
| 2 | 4.7u | C1 | C1206 | 1 | |
| 3 | 0.1u | C2,C3,C4,C5 | C0603 | 4 | |
| 4 | 18pF | CT1,CT2 | C0603 | 2 | 0.003 |
| 5 | 0R | F1 | R0805 | 1 | |
| 6 | WS2812B-2020 | LED1,LED2,LED3,LED4 | LED-SMD_4P-L2.0-W2.0-TL_WS2812B-2020 | 4 | 0.076 |
| 7 | LTC4054ES5-4.2#PBF | NAB1 | SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BL | 1 | 5.451 |
| 8 | LED-0603_R | NLED1 | LED0603_RED | 1 | 0.019 |
| 9 | 0R | PR1 | R0402 | 1 | |
| 10 | SI2305 | Q2 | SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | 1 | 0.032 |
| 11 | 10k | R1 | R0603 | 1 | |
| 12 | 330R | R2 | R0603 | 1 | |
| 13 | 20k | R3 | R0603 | 1 | |
| 14 | 100R | R7 | R0603 | 1 | |
| 15 | Touchpoint | TP1,TP2 | TOUCHPOINT | 2 | |
| 16 | TTP223-BA6 | TTP1,TTP2 | SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL | 2 | 0.159 |
| 17 | CH32X033F8P6 | U1 | TSSOP-20_L6.5-W4.4-P0.65-LS6.4-BL | 1 | 0.413 |
| 18 | U-F-M5SS-W-5 | USB1 | MICRO-USB-SMD_MICRO-USB-A9 | 1 | 0.083 |
