Twatch network LCD schematic and partlist
From DP
Schematic
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Circuit board
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Partlist
| Part | Value | Package |
| IC1 | PIC 18F67J60 | TQFP-64 |
| C1-3 | 10uF tantalum capacitor, 10volts+ | SMC_A |
| C4,5 | 33pF capacitor | 0805 |
| C10,11,C14-23 | 0.1uF capacitor | 0805 |
| ICSP | 5x 0.1" male pin header | |
| J1 | 2.1mm SMD power jack | SMD |
| J2 | HR911105A ethernet jack | RJ-45 |
| L1, L2 | Ferrite bead, 200ma+ | 0805 |
| NPN1 | NPN transistor, 250hfe+, 800ma+ | SOT-23 |
| Q1 | 25MHz SMD crystal | HC49UP |
| R2(A) | 10K single turn trim resistor | 3mm SMD or through hole (cheapest) |
| R3 | 240 ohms resistor | 0805 |
| R4-6 | 390 ohms resistor | 0805 |
| R7 | 2,260 ohms resistor, 1% | 0805 |
| R10-21 | 10,000 ohms resistor | 0805 |
| R30-33 | 49.9 ohms resistor, 1% | 0805 |
| VR1 | LDO 3.3volt regulator (LD1117) | TO-220 |
| VR2 | 7805T 5volt regulator | TO-220 |
| HD44780-LCD | 20x4 HD44780 character LCD | -- |
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