Ricardo-Stark
About the Ricardo-Stark PCB
Ricardo-Stark is an open source ESP32 PCB design by icl-rocketry, published on GitHub. It is a 6-layer board measuring 117 × 49 mm, with 298 components from 126 distinct parts.
Its main chip is the ESP32-S3, from the ESP32 family. Other key parts include the TPS61089RNRR, AP2205-W5-7, SN65HVD230, LM66200DRLR and MAX77827AEFD+T. By type, the board carries 110 resistors, 90 capacitors, 31 jumpers, 18 ICs, 15 connectors and 9 LEDs.
From the project
An integrated engine control unit designed to fire and control liquid bi-propellant rocket engines.
Main components on the Ricardo-Stark
Ricardo-Stark bill of materials (BOM)
298 components, 126 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | TPS61089RNRR | IC_TPS61089RNRR | IC1, IC4 |
| 2 | AP2205-W5-7 | SOT95P282X145-5N | IC2, IC3 |
| 1 | ESP32-S3 | QFN40P700X700X90-57N | U1 |
| 1 | SN65HVD230 | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | LM66200DRLR | SOTFL50P160X60-8N | U3 |
| 1 | MAX77827AEFD+T | CONV_MAX77827AEFD+T | U4 |
| 1 | SC4215 | SOIC127P599X175-9N | U5 |
| 1 | SiC437BED-T1-GE3 | SiC437BEDT1GE3 | U6 |
| 1 | ADS131M06IPBS | ADS131M06IRSNR | U7 |
| 1 | PCA9685BS | QFN-28-1EP_6x6mm_P0.65mm_EP4.25x4.25mm | U8 |
| 1 | 782-TCMT1109 | TCMT1109-4N | U9 |
| 1 | SiC437BED-T1-GE3 SiC438BED-T1-GE3 | SiC437BEDT1GE3 | U10 |
| 1 | LM74810QDRRRQ1 LM74810 | SON50P300X300X80-13N-D | U11 |
| 1 | INA219AXDCN INA219AxDCN | SOT-23-8 | U12 |
| 1 | MAX31856 | TSSOP-14_4.4x5mm_P0.65mm | U13 |
| 1 | PCA9534RGVR | QFN65P400X400X100-17N | U14 |
| 3 | BSZ025N04LS | BSZ025N04LS | Q5, Q6, Q7 |
| 1 | R940000171 | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | RBUS | Molex_Mini-Fit_Jr_5569-06A2_2x03_P4.20mm_Horizontal | J1 |
| 1 | USB_C_RECEPTACLE_USB2.0 USB_C_Receptacle_USB2.0 | USB_C_Receptacle_Palconn_UTC16-G | J2 |
Show 106 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ST1W008S4TR2000 | JAE_ST1W008S4TR2000 | J3 |
| 6 | 1053131104 | Molex_Pico-Clasp_202396-0407_1x04-1MP_P1.00mm_Horizontal | J4, J6, J7, J8, J9, J10 |
| 1 | CONN_01X03_SOCKET Conn_01x03_Socket | PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | CONN_01X08_SOCKET Conn_01x08_Socket | PinHeader_2x04_P2.54mm_Vertical | J11 |
| 1 | CONN_01X02_MALE Conn_01x02_Male | Molex_Nano-Fit_105313-xx02_1x02_P2.50mm_Horizontal | J12 |
| 1 | CONN_01X07_SOCKET Conn_01x07_Socket | Molex_Pico-Clasp_202396-0707_1x07-1MP_P1.00mm_Horizontal | J16 |
| 1 | SERVOCH1 ServoCH1 | Molex_Nano-Fit_105313-xx03_1x03_P2.50mm_Horizontal | J17 |
| 1 | SERVOCH2 ServoCH2 | Molex_Nano-Fit_105313-xx03_1x03_P2.50mm_Horizontal | J18 |
| 1 | BLUE_LED | R_0402_1005Metric | 3V3LED1 |
| 1 | RED_LED | R_0402_1005Metric | 12VLED1 |
| 2 | CONN_01X02_MALE Conn_01x02_Male | PinHeader_1x02_P2.54mm_Vertical | BOOTJUMPER1, ENJUMPER1 |
| 19 | SOLDERJUMPER_3_OPEN SolderJumper_3_Open | small_3pin_SolderJP | JP3, JP5, JP6, JP7, JP10, JP12, JP13, JP14 +11 |
| 12 | SOLDERJUMPER_2_OPEN SolderJumper_2_Open | SmallerSolderJP | JP4, JP8, JP9, JP11, JP15, JP16, JP21, JP22 +4 |
| 1 | Thermocouple | Molex_Nano-Fit_105313-xx02_1x02_P2.50mm_Horizontal | TC1 |
| 1 | GREEN_LED | R_0402_1005Metric | TXLED1 |
| 1 | WHITE_LED | R_0402_1005Metric | USBLED1 |
| 2 | BLUE_LED | LED_0402_1005Metric | 3V3LED4, 3V3LED8 |
| 1 | ORANGE_LED | LED_0402_1005Metric | 3V3LED5 |
| 1 | RED_LED | LED_0402_1005Metric | 3V3LED6 |
| 1 | YELLOW_LED | LED_0402_1005Metric | 3V3LED7 |
| 1 | PURPLE_LED | LED_0402_1005Metric | 3V3LED10 |
| 1 | CANRXLED | LED_0402_1005Metric | CANRXLED1 |
| 1 | CANTXLED | LED_0402_1005Metric | CANTXLED1 |
| 1 | EMERALD_LED | LED_0402_1005Metric | Firing1 |
| 1 | SM712_SOT23 | SOT-23 | D1 |
| 1 | SP0503BAHT | SOT-143 | D2 |
| 1 | DST1550S | TO-277B | D3 |
| 1 | RED_LED | LED_0603_1608Metric | D4 |
| 1 | ~ | SOT-353_SC-70-5 | D6 |
| 1 | RCLAMP3346PQTNT | RCLAMP3346PQTNT | D7 |
| 1 | S-102T | SODFL3516X70N | D9 |
| 1 | 2.0NH 2.0nH | L_0402_1005Metric | L1 |
| 1 | 20NH 20nH | L_0402_1005Metric | L2 |
| 1 | 1UH 1uH | L_0805_2012Metric | L3 |
| 1 | SRR6038-5R0Y 3.3uH | IND_SPM10065VT-3R3M-D | L4 |
| 2 | SRR6038-5R0Y | IND_SRP6540-390M | L5, L6 |
| 1 | 3.3UH 3.3uH | WE-XHMI_7070 | L7 |
| 9 | 10UF 10uF | C_0402_1005Metric | C1, C15, C17, C21, C23, C31, C36, C58 +1 |
| 10 | 1UF 1uF | C_0402_1005Metric | C2, C4, C7, C19, C25, C37, C51, C60 +2 |
| 20 | 0.1UF 0.1uF | C_0402_1005Metric | C3, C5, C6, C8, C10, C11, C24, C30 +12 |
| 7 | 10NF 10nF | C_0402_1005Metric | C9, C33, C38, C41, C42, C43, C44 |
| 2 | 11PF 11pF | C_0402_1005Metric | C12, C13 |
| 11 | 100NF 100nF | C_0402_1005Metric | C14, C32, C34, C54, C56, C59, C66, C67 +3 |
| 1 | 47NF 47nF | C_0402_1005Metric | C16 |
| 2 | 10UF 10uF | C_0603_1608Metric | C18, C61 |
| 1 | 22UF 22uF | C_0603_1608Metric | C20 |
| 3 | 4.7UF 4.7uF | C_0402_1005Metric | C22, C26, C74 |
| 2 | 100UF 100uF | CP_EIA-7360-38_Kemet-E | C27, C28 |
| 1 | 470UF 470uF | CP_Elec_6.3x7.7 | C29 |
| 4 | 22UF 22uF | C_0805_2012Metric | C39, C52, C53, C64 |
| 3 | 47UF 47uF | C_1206_3216Metric | C40, C57, C75 |
| 1 | GRT188R61H225KE13D 1uF | C_0402_1005Metric | C46 |
| 1 | 0.1UF 0.1uF | C_0603_1608Metric | C47 |
| 1 | 2.2UF 2.2uF | C_0603_1608Metric | C48 |
| 1 | 180PF 180pF | C_0402_1005Metric | C49 |
| 1 | 3.9NF 3.9nF | C_0402_1005Metric | C50 |
| 2 | 2.2UF 2.2uF | C_0402_1005Metric | C55, C65 |
| 1 | 120PF 120pF | C_0402_1005Metric | C62 |
| 1 | 2.2NF 2.2nF | C_0402_1005Metric | C63 |
| 1 | 22UF 22uF | C_1206_3216Metric | C70 |
| 1 | 160PF 160pF | C_0603_1608Metric | C78 |
| 2 | 0.01UF 0.01uF | C_0402_1005Metric | C79, C85 |
| 1 | 220NF 220nF | C_0402_1005Metric | C81 |
| 21 | 10K | R_0402_1005Metric | R1, R5, R9, R10, R13, R14, R21, R24 +13 |
| 14 | 1k | R_0402_1005Metric | R2, R3, R39, R40, R46, R47, R51, R52 +6 |
| 4 | 470 | R_0402_1005Metric | R4, R6, R12, R43 |
| 1 | 499R | R_0402_1005Metric | R7 |
| 1 | 3k | R_0402_1005Metric | R8 |
| 2 | 4.7K 4.7k | R_0402_1005Metric | R11, R94 |
| 1 | 0 | R_0402_1005Metric | R15 |
| 2 | 60.4 | R_0402_1005Metric | R16, R17 |
| 4 | 5.1K 5.1k | R_0402_1005Metric | R18, R19, R20, R71 |
| 7 | 14K 14k | R_0402_1005Metric | R22, R37, R48, R55, R75, R92, R100 |
| 1 | 56K 56k | R_0402_1005Metric | R23 |
| 1 | 130K 130k | R_0402_1005Metric | R26 |
| 2 | 2.2 | R_0402_1005Metric | R28, R84 |
| 1 | 294K 294k | R_0402_1005Metric | R29 |
| 1 | 499K 499k | R_0402_1005Metric | R31 |
| 5 | 100K 100k | R_0402_1005Metric | R32, R44, R62, R69, R87 |
| 1 | DNP | R_0402_1005Metric | R34 |
| 6 | 75K 75k | R_0402_1005Metric | R36, R45, R54, R74, R78, R99 |
| 6 | 49 | R_0402_1005Metric | R41, R49, R53, R59, R98, R104 |
| 1 | 1.5K 1.5k | R_0402_1005Metric | R42 |
| 1 | 7.87K 7.87k | R_0402_1005Metric | R60 |
| 1 | 360K 360k | R_0402_1005Metric | R61 |
| 1 | 560K 560k | R_0402_1005Metric | R63 |
| 2 | 49.9K 49.9k | R_0402_1005Metric | R64, R70 |
| 1 | 150K 150k | R_0402_1005Metric | R65 |
| 1 | 301K 301k | R_0402_1005Metric | R66 |
| 1 | 18.7K 18.7k | R_0402_1005Metric | R67 |
| 1 | 976K 976k | R_0402_1005Metric | R68 |
| 1 | 475K 475k | R_0402_1005Metric | R72 |
| 1 | 287K 287k | R_0402_1005Metric | R73 |
| 1 | 120 | R_0402_1005Metric | R77 |
| 1 | 120 | R_0603_1608Metric | R79 |
| 1 | 4.22K 4.22k | R_0402_1005Metric | R80 |
| 1 | 190K 190k | R_0402_1005Metric | R82 |
| 1 | WSLF25122L000FEB 2m | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R85 |
| 1 | 200K 200k | R_0402_1005Metric | R86 |
| 2 | 10 | R_0402_1005Metric | R89, R93 |
| 1 | 5.1 | R_0603_1608Metric | R90 |
| 1 | 54.9R | R_0402_1005Metric | R91 |
| 2 | 2.2K 2.2k | R_0402_1005Metric | R105, R106 |
| 1 | 432K 432k | R_0402_1005Metric | R107 |
| 2 | 165R | R_0402_1005Metric | R109, R110 |
| 2 | 100 | R_0402_1005Metric | R111, R112 |
Ricardo-Stark design files
The KiCad project lives in the icl-rocketry/Ricardo-Stark repository on GitHub; these links point at the commit this page was built from.
Ricardo-Stark: common questions
What microcontroller does the Ricardo-Stark use?
The Ricardo-Stark is built around the ESP32-S3, from the ESP32 family.
How big is the Ricardo-Stark PCB?
The Ricardo-Stark measures 117 × 49 mm, has 6 copper layers and is 1.6062 mm thick.
How many components are on the Ricardo-Stark?
298 components, from 126 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Ricardo-Stark design files?
From the icl-rocketry/Ricardo-Stark repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Ricardo-Stark design in my own project?
The repository has no license, so all rights stay with icl-rocketry. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Ricardo-Stark 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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