CopterCat cm4
About the CopterCat cm4 PCB
CopterCat cm4 is an open source ESP32 PCB design by matveylapin, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 40 × 55 mm, with 156 components from 64 distinct parts.
Its main chip is the ESP32-S2FH4, from the ESP32 family. Other key parts include the LY68L6400SLIT, STM32H753IIK6, ICM-20602, BMP388 and FM25V02A-GTR. By type, the board carries 56 resistors, 44 capacitors, 21 ICs, 8 transistors, 6 connectors and 4 crystals.
It belongs with the usb & debug tools designs in this gallery.
From the project
Полётный контроллер для стандарта FMU-v6u. Обычно на дронах для программирования устанавливают полётный контроллер, одноплатный компьютер и иногда arduino. Почему бы не объединить это в одну плату (ну или компактный стек), это уменьшит габариты и вес. В качестве arduino мы выбрал
Полётный контроллер для стандарта FMU-v6u. Обычно на дронах для программирования устанавливают полётный контроллер, одноплатный компьютер и иногда arduino. Почему бы не объединить это в одну плату (ну или компактный стек), это уменьшит габариты и вес. В качестве arduino мы выбрали чип ESP32, это позволит организовывать из нескольких подобных плат одну независимую сеть для коммуникации между дронами.
Main components on the CopterCat cm4
CopterCat cm4 bill of materials (BOM)
156 components, 64 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LY68L6400SLIT | SOIC127P600X175-8N | IC1 |
| 1 | STM32H753IIK6 STM32H753IIKx | UFBGA-201_10x10mm_Layout15x15_P0.65mm | U1 |
| 1 | ICM-20602 | LGA-16_3x3mm_P0.5mm_LayoutBorder3x5y | U2 |
| 1 | BMP388 | PQFN50P200X200X80-10N | U3 |
| 1 | FM25V02A-GTR | SOIC127P602X172-8N | U4 |
| 1 | BMM150 | WLCSP-12_1.56x1.56mm_P0.4mm | U5 |
| 1 | DF40HC(3.0)-100DS-0.4V Compute_Module_4_Connectors | Raspberry-Pi-4-Compute-Module | U6 |
| 1 | ICM-42605 | PQFN50P300X250X97-14N | U7 |
| 1 | CP2104-F03-GMR CP2104 | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U8 |
| 2 | AMS1117-3.3 | SOT-223-3_TabPin2 | U9, U12 |
| 1 | ESP32-S2FH4 | QFN40P700X700X90-57T400N | U10 |
| 1 | W25Q128JVSIQ W25Q128JVS | SOIC-8_5.23x5.23mm_P1.27mm | U11 |
| 1 | U74AHC1G04G-AL5-R 74AHC1G04 | SOT-353_SC-70-5 | U13 |
| 2 | FSUSB42UMX FSUSB42MUX | UQFN-10_1.4x1.8mm_P0.4mm | U14, U18 |
| 1 | TPD4E02B04DQA | USON-10_2.5x1.0mm_P0.5mm | U15 |
| 1 | CAT24C256HU4IGT3 CAT24C256 | DFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.5mm | U16 |
| 1 | BMI088 | PQFN50P450X300X100-16N | U17 |
| 1 | USB2514B-AEZC-TR USB2514B_Bi | QFN-36-1EP_6x6mm_P0.5mm_EP3.7x3.7mm | U19 |
| 1 | TF-021B-H265 47579-0001 | POS-8 | U21 |
| 1 | MMDT3906 | SOT-363_SC-70-6 | Q1 |
Show 44 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | SSM6J507NU,LF | TRANS_SSM6J507NU,LF | Q2, Q8 |
| 1 | MUN5211DW1T1G MUN5211DW1 | SOT-363_SC-70-6 | Q3 |
| 2 | AO3400A | SOT-23 | Q4, Q5 |
| 1 | 2N7002,215 2N7002K | SOT-23 | Q6 |
| 1 | FDN340P | SOT-23 | Q7 |
| 1 | OT201616MJBA4SL 16MHz | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | TFX-04-32.768K 32.768 | Crystal_SMD_MicroCrystal_CM9V-T1A-2Pin_1.6x1.0mm | Y2 |
| 1 | OT201624MJBA4SL 24MHz | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y3 |
| 1 | OT201640MJBA4SL 40MHz | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y4 |
| 3 | Conn_01x08_Male | PinHeader_1x08_P2.54mm_Vertical | J2, J3, J4 |
| 1 | 5V | power_pad | J5 |
| 1 | 918-418K2023S40001 USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J6 |
| 1 | USB_SWITCH | PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | ANT016008LCS2442MA2 | ANT_ANT016008LCS2442MA2 | ANT1 |
| 2 | AFC04-S22ECA-00 Conn_01x22_Female | Hirose_FH12-22S-0.5SH_1x22-1MP_P0.50mm_Horizontal | CAM0, CAM1 |
| 2 | A1257WR-S-6P | JST_GH_SM06B-GHS-TB_1x06-1MP_P1.25mm_Horizontal | GPS1, POWER1 |
| 4 | A1257WR-S-4P | JST_GH_SM04B-GHS-TB_1x04-1MP_P1.25mm_Horizontal | I2C1, LASER1, TELEM1, TELEM2 |
| 1 | BOOT | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | BR | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | A1257WR-S-5P | JST_GH_SM05B-GHS-TB_1x05-1MP_P1.25mm_Horizontal | RC1 |
| 1 | debug | debug_port | STM_DEBUG1 |
| 1 | FM-B2020RGBA-HG LED_RBAG | LED_Cree-PLCC4_2x2mm_CW | D1 |
| 2 | 1N5819WS | D_SOD-323 | D5, D7 |
| 1 | SDCL1005C2N0STDF 1nH | L_0402_1005Metric | L2 |
| 6 | CL05A225MQ5NSNC 2.2uF | C_0402_1005Metric | C1, C2, C3, C14, C22, C23 |
| 20 | CL05B104KB54PNC 100nF | C_0402_1005Metric | C4, C5, C6, C7, C10, C13, C15, C16 +12 |
| 6 | 0402CG150J500NT 15pF | C_0402_1005Metric | C8, C11, C20, C21, C30, C31 |
| 2 | 0402CG120J500NT 12pF | C_0402_1005Metric | C9, C12 |
| 4 | ZRB15XR61A106ME01D 10uF | C_0402_1005Metric | C24, C25, C26, C27 |
| 5 | ZRB15XR61A106ME01D 10uF | CP_EIA-3216-18_Kemet-A | C28, C38, C39, C40, C41 |
| 1 | CL05B104KB54PNC 1pF | C_0402_1005Metric | C29 |
| 6 | 0402WGF330JTCE 33R | R_0402_1005Metric | R1, R2, R6, R9, R10, R21 |
| 5 | 0402WGF4701TCE 4K7 | R_0402_1005Metric | R3, R13, R19, R22, R29 |
| 17 | 0402WGF1002TCE 10K | R_0402_1005Metric | R4, R5, R15, R16, R17, R18, R23, R24 +9 |
| 9 | 0402WGF100KTCE 100K | R_0402_1005Metric | R7, R35, R36, R37, R40, R48, R49, R52 +1 |
| 4 | AECR0402F220RK9 220R | R_0402_1005Metric | R8, R47, R50, R57 |
| 4 | DNP | R_0402_1005Metric | R11, R25, R26, R27 |
| 1 | 0402WGF1004TCE 1M | R_0402_1005Metric | R12 |
| 2 | 0402WGF1001TCE 1K | R_0402_1005Metric | R14, R42 |
| 1 | 0402WGF4701TCE 4.7K | R_0402_1005Metric | R20 |
| 3 | 0402WGF1000TCE 100R | R_0402_1005Metric | R31, R32, R33 |
| 1 | 0402WGF5101TCE 1K5 | R_0402_1005Metric | R34 |
| 2 | 0402WGF5101TCE 5K1 | R_0402_1005Metric | R38, R39 |
| 1 | RT0402BRD0712K1L 12K | R_0402_1005Metric | R51 |
CopterCat cm4 design files
The KiCad project lives in the matveylapin/CopterCat_cm4 repository on GitHub; these links point at the commit this page was built from.
- LayoutCopterCat_cm4.kicad_pcb
- SchematicCopterCat_cm4.kicad_sch
CopterCat cm4: common questions
What microcontroller does the CopterCat cm4 use?
The CopterCat cm4 is built around the ESP32-S2FH4, from the ESP32 family.
How big is the CopterCat cm4 PCB?
The CopterCat cm4 measures 40 × 55 mm, has 4 copper layers and is 4.69 mm thick.
How many components are on the CopterCat cm4?
156 components, from 64 distinct parts. The full bill of materials is listed on this page.
Where can I download the CopterCat cm4 design files?
From the matveylapin/CopterCat_cm4 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the CopterCat cm4 design in my own project?
Yes, under the terms of its Apache-2.0 license, which matveylapin chose for the repository.
Can I test firmware for the CopterCat cm4 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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