MIDAS Mini MK1
About the MIDAS Mini MK1 PCB
MIDAS Mini MK1 is an open source ESP32 PCB design by ISSUIUC, published on GitHub. It is a 4-layer board measuring 25 × 80 mm, with 122 components from 59 distinct parts.
Its main chip is the ESP32-S3-MINI-1U, from the ESP32 family. Other key parts include the ADS7138-Q1, ECMF02-2AMX6, ZDSD64GLGEAG-R, TCA4307 and E22-400MM22S. By type, the board carries 55 resistors, 27 capacitors, 16 ICs, 10 connectors, 10 diodes and 2 transistors.
It belongs with the sensors designs in this gallery.
From the project
Building custom flight computers
Archive: Moved to the Archive repo... check it out! 😁 Boards: Contains all of the present boards the team is working on Docs: Contains various documents pertaining to PCB designs Libs: Contains various templates, symbols and footprints that we use when designing PCBs * Scripts: Contains various codes used in PCB development
When you commit changes to the repository, they will generally be found in the Boards folder.
Main components on the MIDAS Mini MK1
MIDAS Mini MK1 bill of materials (BOM)
122 components, 59 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ADS7138-Q1 | WQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm | U101 |
| 1 | ECMF02-2AMX6 | ST_UQFN-6L_1.5x1.7mm_P0.5mm | U102 |
| 1 | ESP32-S3-MINI-1U | ESP32-S2-MINI-1U | U103 |
| 1 | ZDSD64GLGEAG-R | LGA-8_8x6.2mm_P1.27mm | U104 |
| 1 | TCA4307 | WSON-8-1EP_3x3mm_P0.5mm_EP1.45x2.4mm | U105 |
| 1 | E22-400MM22S | E22-400MM22S | U106 |
| 1 | SAM-M10Q | ublox_SAM-M8Q | U107 |
| 2 | TVS1800DRV | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U201, U202 |
| 1 | TPS2121 | Texas_VQFN-HR-12_2x2.5mm_P0.5mm | U203 |
| 1 | TPS746-Q1 | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U204 |
| 1 | MMC5983MA | LGA-16_3x3mm_P0.5mm | U301 |
| 1 | LSM6DSV320X | LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | U302 |
| 1 | MS5611-01BA | LGA-8_3x5mm_P1.25mm | U303 |
| 1 | TPS25947 | VQFN-HR-RPW0010A | U401 |
| 1 | TCAL9538 | UQFN-16_1.8x2.6mm_P0.4mm | U402 |
| 2 | Si7232DN | Vishay_PowerPAK_1212-8_Dual | Q401, Q402 |
| 1 | USB4105-GF-A | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J101 |
| 2 | Screw_Terminal_01x06 | TerminalBlock_TE_282834-6_1x06_P2.54mm_Horizontal | J102, J103 |
| 1 | Conn_01x03 | Molex_Micro-Lock_2200980371_1x03_P1.25mm_Horizontal | J104 |
| 1 | SMA | SMA_Molex_73251-2120_EdgeMount_Horizontal | J105 |
Show 39 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Conn_01x03 | PinHeader_1x03_P1.27mm_Vertical | J106 |
| 1 | Conn_01x02 | PinHeader_1x02_P1.27mm_Vertical | J107 |
| 1 | Conn_01x03 | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J108 |
| 1 | TestPoint | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | J201 |
| 1 | Conn_01x02 | PinSocket_1x02_P2.54mm_Vertical | J202 |
| 1 | Buzzer | Buzzer_SMTB-0927-TW-R | BZ101 |
| 2 | SDM05U40CSP | D_SOD-882 | D101, D202 |
| 2 | ESD321 | Texas_DPY0002A_0.6x1mm_P0.65mm | D102, D103 |
| 2 | RED LED | LED_0603_1608Metric | D104, D203 |
| 1 | ORANGE LED | LED_0603_1608Metric | D105 |
| 1 | GREEN LED | LED_0603_1608Metric | D106 |
| 1 | BLUE LED | LED_0603_1608Metric | D107 |
| 1 | BAS116L | D_SOD-882 | D201 |
| 1 | 330nH | L_0402_1005Metric | L101 |
| 6 | 1uF | C_0402_1005Metric | C101, C102, C103, C112, C201, C202 |
| 1 | 22uF | C_0402_1005Metric | C104 |
| 13 | 100nF | C_0402_1005Metric | C105, C106, C107, C108, C109, C113, C114, C301 +5 |
| 2 | 10uF | C_0402_1005Metric | C110, C303 |
| 1 | 10nF | C_0402_1005Metric | C111 |
| 1 | 100mF | CP_Elec_10x10.5 | C203 |
| 2 | 4.7uF | C_0402_1005Metric | C204, C402 |
| 1 | 4.7nF | C_0402_1005Metric | C401 |
| 13 | 100k | R_0402_1005Metric | R101, R103, R104, R105, R108, R109, R116, R404 +5 |
| 1 | 560k | R_0402_1005Metric | R102 |
| 2 | 5.1k | R_0402_1005Metric | R106, R107 |
| 5 | 50k | R_0402_1005Metric | R110, R111, R112, R113, R114 |
| 4 | 10k | R_0402_1005Metric | R115, R119, R423, R424 |
| 2 | 4.7k | R_0402_1005Metric | R117, R118 |
| 1 | 20k | R_0402_1005Metric | R120 |
| 5 | 470 | R_0402_1005Metric | R121, R122, R123, R124, R207 |
| 2 | 16.9k | R_0402_1005Metric | R201, R203 |
| 2 | 5k | R_0402_1005Metric | R202, R204 |
| 1 | 21.5k | R_0402_1005Metric | R205 |
| 1 | 20 | R_0612_1632Metric | R206 |
| 4 | 3.3k | R_0402_1005Metric | R401, R402, R415, R416 |
| 2 | 150k | R_0402_1005Metric | R403, R413 |
| 5 | 1k | R_0402_1005Metric | R405, R406, R412, R417, R418 |
| 4 | 18k | R_0402_1005Metric | R409, R410, R421, R422 |
| 1 | 820 | R_0402_1005Metric | R411 |
MIDAS Mini MK1 design files
The KiCad project lives in the ISSUIUC/ISS-PCB repository on GitHub; these links point at the commit this page was built from.
MIDAS Mini MK1: common questions
What microcontroller does the MIDAS Mini MK1 use?
The MIDAS Mini MK1 is built around the ESP32-S3-MINI-1U, from the ESP32 family.
How big is the MIDAS Mini MK1 PCB?
The MIDAS Mini MK1 measures 25 × 80 mm, has 4 copper layers and is 1.6062 mm thick.
How many components are on the MIDAS Mini MK1?
122 components, from 59 distinct parts. The full bill of materials is listed on this page.
Where can I download the MIDAS Mini MK1 design files?
From the ISSUIUC/ISS-PCB repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the MIDAS Mini MK1 design in my own project?
The repository has no license, so all rights stay with ISSUIUC. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the MIDAS Mini MK1 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.
More boards in ISS-PCB
STM32BAGEL Switch MK1.1
70 × 70 mm201 parts4LNo license31
ESP32MIDAS MK1
60 × 100 mm201 parts4LNo license31
ESP32MIDAS MK1.1
60 × 100 mm199 parts4LNo license31
STM32BAGEL Switch MK1
70 × 70 mm189 parts4LNo license31
ESP32MIDAS MK2.1
45 × 100 mm186 parts4LNo license31
RP2040/RP2350Stargazer Camera Board
40 × 60 mm110 parts2LNo license31
ESP32Stargazer Camera Board MK2.1
40 × 40 mm108 parts4LNo license31
NXPSPARK Pyrotechnic Testing Board
100 × 80 mm70 parts2LNo license31
ESP32EAGLE Video Receiver
50 × 55 mm65 parts4LNo license31
ESP32MotorBoard MK1
65 × 70 mm59 parts4LNo license31
ESP32Feather Duo
40 × 40 mm39 parts4LNo license31
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