4 layers87.6 × 35 mm
Tft controller new
ryanhaus/rp2040_tft_controller_pcb
RP2040-based controller board for the MI0284QT-11 TFT LCD (ILI9341 controller chip)
44 parts
4 layers42.7 × 61.3 mm
JouleCounter
Ralim/potato12OpenSource inline USB-PD Power meter
- Size
- 42.7 × 61.3 mm
- Copper layers
- 4
- Thickness
- 0.74 mm
- Parts
- 78
- Nets
- 95
- Pads
- 425
- Tracks, vias
- 1,134, 207
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 2 Mar 2022
- Updated
- 3 Mar 2023
Overview
JouleCounter is an open-source printed circuit board by Ralim, from the Ralim/potato repository on GitHub, published under the MIT licence. It is a 4-layer board of 42.7 × 61.3 mm with 78 parts on 95 nets, routed with 1,134 tracks and 207 vias.
It is built around the FUSB302BMPX, L7983PU33R and MP4560DN-LF-Z, with the LP2985-28DBV among its other parts. Its parts include 34 capacitors, 21 resistors, 8 ICs, 4 connectors and 4 switches. It belongs with the power boards of this library.
Main components
4
FUSB302BMPX
WFQFN-14(2.5x2.5)-40℃~+125℃ 2.8V~5.5V 25uA Controller USB 3.1 WFQFN-14(2.5x2.5) USB Converters ROHSonsemiUSB Converters
L7983PU33R
DFN-10-EP(3x3)-40℃~+125℃ 1 10uA 200kHz~2.2MHz 3.3V 3.5V~60V 300mA Buck Built-in Fixed Step-down type Yes DFN-10-EP(3x3) DC-DC Converters ROHSSTMicroelectronicsDC-DC Converters
MP4560DN-LF-Z
SOIC-8-EP-40℃~+125℃@(TJ) 1 140uA 1MHz、2MHz 2A 3.8V~55V 800mV~52V Adjustable Buck Buck Built-in No SOIC-8-EP DC-DC Converters ROHSMonolithic Power SystemsDC-DC Converters
LP2985-28DBV
SOT-23-5-40℃~+125℃@(Tj) 1 150mA 16V 2.8V 280mV@(0.15A) 30uVrms 45dB@(1kHz) 850uA Fixed Over Current Protection、Over Temperature Protection、Enable、Short Circuit Protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdPotato
OpenSource inline USB-PD Power meter.
...WIP...
Desired features
-
Easy to assemble (No QFN)
-
Read device PD capabilities
-
Capture USB-PD messages
-
Read USB D- / D+ voltages for QC
-
Pull resistors for QC control
-
UART or USB for datalogging
-
Either buttons or encoder for input
-
Small LCD display
-
DC In/Out port
-
Accelerometer or tilt switch for rotation?
Ideas to explore
- As LVGL is a goal for the UI, consider prototyping on "real" computer or talking to the PineTime team about their experience about developing UI in NaCL, allowing feedback from web users. If realized, this may allow more explorative development in a less painful environment as you can skip the slow upload/reboot cycle.
Parts
78| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 1uF | Capacitor_SMD:C_0603_1608Metric | C201, C202, C203, C204, C208, C301, C302, C401, C402 |
| 5 | 100nF | Capacitor_SMD:C_0603_1608Metric | C206, C207, C210, C905, C1001 |
| 4 | - | Capacitor_SMD:C_0603_1608Metric | C211, C212, C903, C904 |
| 4 | 200? | Resistor_SMD:R_0603_1608Metric | R906, R907, R908, R909 |
| 4 | C | Capacitor_SMD:C_0603_1608Metric | C701, C702, C703, C1005 |
| 3 | 0 | Resistor_SMD:R_0603_1608Metric | R202, R1001, R1003 |
| 3 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C1002, C1003, C1004 |
| 3 | 200k | Resistor_SMD:R_0603_1608Metric | R901, R904, R905 |
| 3 | SW_Push | Button_Switch_THT:SW_Tactile_SKHH_Angled | SW801, SW802, SW803 |
| 2 | - | Resistor_SMD:R_0603_1608Metric | R902, R903 |
| 2 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C908, C909 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R101, R201 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C902, C906 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R601, R602 |
| 2 | FUSB302B | Package_DFN_QFN:WQFN-14-1EP_2.5x2.5mm_P0.5mm_EP1.45x1.45mm | U301, U401 |
| 2 | USB_C_Receptacle | Connector_USB:USB_C_Receptacle_Amphenol_12401610E4-2A | J502, J601 |
| 1 | 0.02 | Resistor_SMD:R_Shunt_Vishay_WSK2512_6332Metric_T1.19mm | R501 |
| 1 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C213 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R1004 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C205 |
| 1 | 15 | Inductor_SMD:L_Wuerth_MAPI-3010 | L901 |
| 1 | 16pF | Capacitor_SMD:C_0603_1608Metric | C209 |
| 1 | 180k | Resistor_SMD:R_0603_1608Metric | R1005 |
| 1 | 1uf | Capacitor_SMD:C_0603_1608Metric | C911 |
| 1 | 2.2uH | Inductor_SMD:L_0805_2012Metric | L201 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q701 |
| 1 | 40MHz | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y201 |
| 1 | 47uF | Capacitor_SMD:C_0603_1608Metric | C901 |
| 1 | 47uH | Inductor_SMD:L_1210_3225Metric | L1001 |
| 1 | 68k | Resistor_SMD:R_0603_1608Metric | R1006 |
| 1 | BL706 | Package_DFN_QFN:QFN-48-1EP_6x6mm_P0.4mm_EP4.2x4.2mm | U201 |
| 1 | Conn_02x25_Odd_Even_MountingPin | Connector_FFC-FPC:Molex_54132-5033_1x50-1MP_P0.5mm_Horizontal | J901 |
| 1 | DNP | Resistor_SMD:R_0603_1608Metric | R1002 |
| 1 | D_Schottky | Diode_SMD:D_SOD-323 | D901 |
| 1 | INA226 | Package_SO:VSSOP-10_3x3mm_P0.5mm | U701 |
| 1 | KH2012F245C04 | Resistor_SMD:R_0805_2012Metric | AE201 |
| 1 | L7983PU33R | L7983PU33R:L7983PU33R | IC1001 |
| 1 | LP2985-2.8 | Package_TO_SOT_SMD:SOT-23-5 | U901 |
| 1 | MP4560DN-LF-Z | MP4560DN:SOIC127P600X170-9N | IC901 |
| 1 | SW_DIP_x02 | Button_Switch_SMD:SW_DIP_SPSTx02_Slide_Copal_CHS-02A_W5.08mm_P1.27mm_JPin | SW501 |
| 1 | TC2014-3.3VxCTTR | Package_TO_SOT_SMD:SOT-23-5 | U702 |
| 1 | USB_C_Receptacle | Connector_USB:USB_C_Plug_JAE_DX07P024AJ1 | J501 |
Questions
How big is the JouleCounter PCB?
It measures 42.7 × 61.3 mm and has 4 copper layers, 0.74 mm thick.
What parts does the JouleCounter use?
78 parts, built around the FUSB302BMPX, L7983PU33R, MP4560DN-LF-Z and LP2985-28DBV. 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.
Where can I download the JouleCounter KiCad files?
From the Ralim/potato repository on GitHub, at the commit this page was made from: the board is PCBA/JouleCounter.kicad_pcb and its schematic PCBA/Flash.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the JouleCounter design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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