2 layers190 × 152 mm
UControl v2
wyolum/Wyolum-old-archive
Automatically exported from code.google.com/p/clockthree
114 parts1
2 layers99 × 80 mm
MmM
wyolum/mmM2mmMercury is an Open Hardware, blood pressure measurement device (not FDA approved).
- Size
- 99 × 80 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 167
- Nets
- 59
- Pads
- 391
- Tracks, vias
- 1,017, 32
- Pours
- 13
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 6 Jul 2015
- Updated
- 7 Jun 2026
Overview
MmM is an open-source printed circuit board by wyolum, from the wyolum/mmM repository on GitHub. It is a 2-layer board of 99 × 80 mm with 167 parts on 59 nets, routed with 1,017 tracks and 32 vias.
It is built around the DS3231N/DIP, TXB0104D and BCP5416TA, with the SS35 among its other parts. Its parts include 24 capacitors, 18 resistors, 15 connectors, 10 diodes and 5 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4
DS3231N/DIP
--40℃~+85℃ 2.3V~5.5V Built-in I2C Temperature compensation、Backup power management and battery charging、Programmable clock output、Alarm function - Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
TXB0104D
SOIC-14-40℃~+85℃ 1 1.2V~3.6V 1.65V~5.5V 100Mbps 4 Auto Direction Detection Bidirectional CMOS CMOS Tri-State SOIC-14 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
BCP5416TA
SOT-223-65℃~+150℃ 1 NPN 10 150MHz 1A 20uA 2W 500mV 5V 80V NPN SOT-223 Bipolar (BJT) ROHSDiodes IncorporatedBipolar (BJT)
SS35
DO-214AB(SMC)-55℃~+150℃ 100A 3A 500uA@50V 50V 750mV@3A Independent DO-214AB(SMC) Schottky Diodes ROHSonsemiSchottky Diodes
README
kicad/README.mduCm
uCmini is a laboratory, Open Hardware, blood pressure measurement device (not FDA approved). Along with the hardware, we will develop an Android app to do the compute BP from the streaming raw data from uCm. The app will store your BP history, and plot the history. The desire is to get the Open communities involved in the the algorithm development. If we use the Bluefruit Ez-link, the same hardware will work with an FTDI cable.
License
Parts
167| Qty | Value | Footprint | References |
|---|---|---|---|
| 34 | via01 | mmM:via01 | REF1, REF2, REF10, REF11, REF12, REF13, REF14, REF15, REF16, REF17, REF18, REF19, REF20, REF21, REF22, REF23 +18 |
| 28 | via01 | mmM:via_th | REF28, REF29, REF30, REF31, REF32, REF33, REF34, REF35, REF36, REF37, REF38, REF39, REF40, REF41, REF42, REF43 +12 |
| 15 | 100nF | mmM:c_0805 | C1, C4, C7, C8, C9, C10, C11, C13, C14, C17, C19, C23, C28, C29, C31 |
| 11 | 10k | mmM:r_0805 | R1, R2, R3, R4, R11, R12, R14, R15, R16, R21, R22 |
| 4 | BCP5416TA | mmM:SOT223 | Q1, Q2, Q3, Q4 |
| 4 | ES1D-13-F | mmM:diode-DO214AC | D1, D3, D4, D9 |
| 4 | SCREW | mmM:vite_3mm | SC6, SC7, SC9, SC10 |
| 3 | 1k | mmM:r_0805 | R6, R10, R13 |
| 3 | I_O | mmM:I_O | B1, B2, B3 |
| 3 | Logo_OH | mmM:OSHW_6mm | G3, G3, G4 |
| 2 | 100uF 10V | mmM:C_2917_HandSoldering | C16, C18 |
| 2 | 10nF | mmM:c_0805 | C12, C15 |
| 2 | 22pF | mmM:c_0603 | C2, C3 |
| 2 | 330uF 25V | mmM:C_ELCO_SMD_8x10 | C5, C6 |
| 2 | 33uH | mmM:Choke_SMD_Wuerth-784775133 | L1, L2 |
| 2 | C3SB | mmM:pin_strip_4-90 | P9, P10 |
| 2 | EN | mmM:r_0805 | W1, W2 |
| 2 | Logo_Wyolum | mmM:Logo-WL3 | G1, G2 |
| 2 | PB0 | mmM:I_O | B4, B12 |
| 2 | PC1 | mmM:I_O | B7, B9 |
| 2 | SS35 | mmM:DO-214AB | D2, D10 |
| 1 | 100uF | mmM:C_ELCO_SMD | C27 |
| 1 | 120E | mmM:r_0805 | R9 |
| 1 | 12V | mmM:led_0805 | D8 |
| 1 | 16MHz | mmM:Xtal_SMD3 | X1 |
| 1 | 330E | mmM:r_0805 | R8 |
| 1 | 3V3 | mmM:led_0805 | D6 |
| 1 | 3V3_EXT | mmM:Header_3 | J2 |
| 1 | 4k7 | mmM:r_0805 | R5 |
| 1 | 5V0 | mmM:led_0805 | D5 |
| 1 | 5V_EXT | mmM:Header_3 | J1 |
| 1 | AREF | mmM:ShortLink2 | P1 |
| 1 | ATMEGA328P-AU-ND | mmM:TQFP32 | U7 |
| 1 | BATT_HOLDER | mmM:CR2032 | BT1 |
| 1 | BLINK | mmM:led_0805 | D7 |
| 1 | BUZZER | mmM:Speaker | SP1 |
| 1 | DS3231N | mmM:DS3231 | U5 |
| 1 | FTDI | mmM:Header_FTDI | P5 |
| 1 | GAGE_PR | mmM:HCEM500GUH9P3 | P7 |
| 1 | ICSP | mmM:Header_ISP | P4 |
| 1 | INT0 | mmM:SW_PB_V_H | SW2 |
| 1 | INT1 | mmM:SW_PB_V_H | SW3 |
| 1 | LM2675-3.3 | mmM:SO8E | U3 |
| 1 | LM2675-5.0 | mmM:SO8E | U2 |
| 1 | PC0 | mmM:I_O | B8 |
| 1 | PC6 | mmM:I_O | B10 |
| 1 | PC7 | mmM:I_O | B11 |
| 1 | PUMP | mmM:Pump_P54E01R_03 | P17 |
| 1 | PWR_IN | mmM:JACK_ALIM | P24 |
| 1 | PWR_IN | mmM:Header_2 | P13 |
| 1 | Reset | mmM:SW_PB_V_H | SW1 |
| 1 | TXB0104D | mmM:TXB0104D | U1 |
| 1 | VSel_Vlv | mmM:Header_3 | P11 |
| 1 | VSel_Vlv2 | mmM:Header_3 | P34 |
| 1 | X_VALVE | mmM:X_Valve_2 | P14 |
| 1 | X_VALVE2 | mmM:X_Valve_2 | P38 |
| 1 | Zero | mmM:r_0805 | R7 |
Questions
How big is the MmM PCB?
It measures 99 × 80 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MmM use?
167 parts, built around the DS3231N/DIP, TXB0104D, BCP5416TA and SS35. 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 MmM KiCad files?
From the wyolum/mmM repository on GitHub, at the commit this page was made from: the board is kicad/mmM.kicad_pcb and its schematic kicad/interface.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MmM design in my own project?
Its repository states no licence, so its author keeps all rights: ask wyolum before reusing the design.
Similar boards
- 2 layers190 × 152 mm
- 2 layers190 × 152 mm
- 2 layers33 × 128.5 mm
Encoder
cukier/LoraProgrammer
Firmware ESP32 (ESP-IDF) para programar e configurar módulos de rádio LoRa, expondo a configuração através de um servidor HTTP em Wi-Fi (SoftAP/STA), acessível também via mDNS (http:// .local/).
84 partsMIT - 2 layers74.7 × 53.6 mm
- 2 layers148.1 × 37.1 mm
- 2 layers99.1 × 99.1 mm
- 2 layers100 × 100 mm
SmartSolarHeatingProject
UnknownHero99/SmartSolarHeatingProject
ESP32 based Smart Solar Heating Project
63 parts5