
Whisker
HeyPCB/whisker
Drop-in controller for Petoi's Nybble robot cat running the stock OpenCat firmware: ATmega328P, PCA9685, MPU-6050, USB-C, 3 A buck, protected battery input. 4-layer KiCad 10 board plus printed cradle.

Testbench is an open-source printed circuit board by IvoZal, from the IvoZal/DP repository on GitHub. It is a 2-layer board of 185.4 × 134.6 mm with 97 parts on 126 nets, routed with 740 tracks and 52 vias.
It is built around the ATMEGA2561-16AU, CH340C and USBLC6-2SC6, with the X322516MLB4SI among its other parts. Its parts include 56 resistors, 11 capacitors, 10 ICs, 3 connectors and 1 diode. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Diplomova prace
| Qty | Value | Footprint | References |
|---|---|---|---|
| 33 | 330R | Resistor_SMD:R_0805_2012Metric | R3, R16, R29, R30, R31, R32, R33, R34, R35, R36, R37, R38, R39, R40, R41, R42 +17 |
| 12 | 1k | Resistor_SMD:R_0805_2012Metric | R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28 |
| 7 | 100n | Capacitor_SMD:C_0805_2012Metric | C4, C5, C6, C7, C8, C9, C11 |
| 5 | 10k | Resistor_SMD:R_0805_2012Metric | R9, R10, R11, R12, R13 |
| 2 | 22p | Capacitor_SMD:C_0805_2012Metric | C2, C3 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged2Bar_RoundedPad1.0x1.5mm | JP1, JP2 |
| 2 | TestPoint | TestPoint:TestPoint_Keystone_5005-5009_Compact | TP1, TP2 |
| 1 | 100R@100MHz | Inductor_SMD:L_0805_2012Metric | FB1 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric | R8 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C10 |
| 1 | 200R | Resistor_SMD:R_0805_2012Metric | R14 |
| 1 | 4.7k | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 470R | Resistor_SMD:R_0805_2012Metric | R15 |
| 1 | 500mA | Fuse:Fuse_0805_2012Metric | F1 |
| 1 | ATmega2561-16A | Package_QFP:TQFP-64_14x14mm_P0.8mm | U1 |
| 1 | AVR-ISP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | AVR-JTAG | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J3 |
| 1 | CH340C | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U10 |
| 1 | LCD_display | kit_modules:LCD_1602A_module | U8 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | LOGO | LOGO | G*** |
| 1 | Matrix_keyboard | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | U7 |
| 1 | RTC_EEPROM_module | kit_modules:RTC_module | U4 |
| 1 | Relay_module | kit_modules:Relay_module | U6 |
| 1 | Rotary_encoder_switch_module | kit_modules:Rotary_encoder_module | U3 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW1 |
| 1 | Speaker | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | LS1 |
| 1 | Thermistor_module | kit_modules:Thermistor_module | U2 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U9 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | X322516MLB4SI | Oscillator:Oscillator_SMD_Abracon_ASE-4Pin_3.2x2.5mm | Y1 |
| 1 | ~ | kit_modules:ATmega328P_Xplained_mini | U5 |
The 91 most common of 97 parts.
It measures 185.4 × 134.6 mm and has 2 copper layers, 1.6 mm thick.
97 parts, built around the ATMEGA2561-16AU, CH340C, USBLC6-2SC6 and X322516MLB4SI. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the IvoZal/DP repository on GitHub, at the commit this page was made from: the board is testbench-PCB/testbench.kicad_pcb and its schematic testbench-PCB/atmega328p.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask IvoZal before reusing the design.

HeyPCB/whisker
Drop-in controller for Petoi's Nybble robot cat running the stock OpenCat firmware: ATmega328P, PCA9685, MPU-6050, USB-C, 3 A buck, protected battery input. 4-layer KiCad 10 board plus printed cradle.

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