2 layers
Ring light
Quard/MLight
MLight is a compact, all-in-one control board designed to manage auxiliary tools for soldering equipment
23 parts1MIT
2 layers100 × 35 mm
Control board
Quard/MLight1MLight is a compact, all-in-one control board designed to manage auxiliary tools for soldering equipment
- Size
- 100 × 35 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 63
- Nets
- 44
- Pads
- 185
- Tracks, vias
- 332, 59
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 9 Oct 2024
- Updated
- 9 Oct 2024
Overview
Control board is an open-source printed circuit board by Quard, from the Quard/MLight repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 35 mm with 63 parts on 44 nets, routed with 332 tracks and 59 vias.
It is built around the AP63205WU, FZT1049ATA and M24C02-WMN6, with the B340, AO3400A and TC2030-IDC-NL among its other parts. Its parts include 16 resistors, 12 capacitors, 9 connectors, 5 ICs and 4 diodes. It belongs with the STM32 boards of this library.
Main components
6
AP63205WU
TSOT-23-6-40℃~+85℃@(TA) 1 1.1MHz 22uA 2A 3.8V~32V 5V Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes TSOT-23-6 DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
FZT1049ATA
SOT-223-55℃~+150℃ 1 NPN 10nA 180MHz 25V 300 3W 5A 70mV 7V NPN SOT-223 Bipolar (BJT) ROHSDiodes IncorporatedBipolar (BJT)
M24C02-WMN6
SO-8SO-8 EEPROM ROHSSTMicroelectronicsEEPROM
B340
SMC(DO-214AB)-55℃~+150℃ 1 Independent 100A 3A 40V 500mV@3A 500uA@40V SMC(DO-214AB) Schottky Diodes ROHSDiodes IncorporatedSchottky Diodes
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
TC2030-IDC-NL
UncategorisedTag Connect
README
README.mdMLight
MLight is a compact, all-in-one control board designed to manage auxiliary tools for soldering equipment. It was primarily developed for an affordable Chinese digital microscope, aiming to reduce the number of power cords and to integrate lighting for the microscope. Additionally, it can control the fan of a basic DIY fume extractor, built using a PC fan and an aquarium coal filter, and provide power to a small external HDMI display for the microscope.
Features of the Control Board:
- Capable of being powered by an external DC 12V source or a QuickChange USB source.
- Bypasses power to the microscope only when the voltage is at 12V.
- Custom ring light with PWM (Pulse Width Modulation) brightness control.
- The PWM for the light is configurable at frequencies of 1 kHz, 4 kHz, 8 kHz, or 16 kHz to prevent image distortion from the microscope.
- Provides a 12V output for PC fan with PWM speed control support for the DIY fume extractor.
- Features a USB output of 1.5A for powering an external HDMI display.
- Includes an OLED display and encoder for easy control.
- Equipped with external EEPROM memory for storing and restoring settings.
A brief demonstration video of the system in operation.
Controls
| Action | Description |
|---|---|
| Encoder short press | Switch between fan and light |
| Encoder rotate | Change the value of current selected element |
| Encoder long press | Disable/enable fan and light |
| Encoder rotate pressed | Change the light PWM frequency |
Project parts
Firmware
The firmware folder includes an STM32CubeIDE CMake project, with all source code developed using CMSIS.
Control Board
The KiCad project is located in the hardware/control_board directory. It includes a BOM file in the project root and an interactive BOM (iBOM) in the bom folder to facilitate assembly.
Ring Light
The same structure applies to the Ring Light project, with its root located in the hardware/ring_light directory. It also contains a BOM file in the project root and an interactive BOM (iBOM) in the bom folder to assist with assembly.
3d
The 3d folder contains STL files and Fusion 360 source files for the brackets used to mount the control board and ring light onto a microscope stand.
Display elements
Components block diagram
BOM
Control Board
| Reference | Value | Qty | Manufacturer Part Number | LCSC | MOUSER |
|---|---|---|---|---|---|
| C1,C4,C10 | 100nF | 3 | CL10B104KB8NNNC | C1591 | 187-CL10B104KB8NNNC |
| C2 | 4.7uF | 1 | CL21A475KAQNNNE | C1779 | 187-CL21A475KAQNNNE |
| C3,C7,C8 | 10uF | 3 | CL21A106KOQNNNE | C1713 | 187-CL21A106KOQNNNE |
| C5,C6,C9 | 10nF | 3 | CL10B103JB8NNNC | C7248 | 187-CL10B103JB8NNNC |
| C11,C12 | 22uF | 2 | CL31A226KAHNNNE | C12891 | 187-CL31A226KAHNNNE |
| D1,D2 | B340 | 2 | B340A-13-F | C85098 | 621-B340A-F |
| D3 | LED | 1 | 150060BS75000 | C84266 | 710-150060BS75000 |
| D4 | LED | 1 | 150060RS75000 | C84263 | 710-150060RS75000 |
| IC1 | FZT1049ATA | 1 | FZT1049ATA | C73835 | 522-FZT1049ATA |
| J1 | USB_A_Stacked | 1 | 67298-4090 | C908455 | 538-67298-4090 |
| J3 | Light | 1 | C158012 | ||
| J4 | Fan | 1 | 47053-3000 | C19795120 | 538-47053-3000 |
| J5 | OLED SSD1306 | 1 | |||
| J7 | USB_C_Receptacle_USB2.0 | 1 | GSB1C211110DS1HR | C709357 | 523-GSB1C211110DS1HR |
| J8 | Barrel_Jack | 1 | KLDHCX-0202-BP-LT | C720558 | 806-KLDHCX0202BPLT |
| J9 | Conn_01x02 | 1 | C158012 | ||
| L1 | 4.7uH | 1 | IHLP2525CZER4R7M01 | C553961 | 70-IHLP2525CZER4R7M1 |
| Q1 | AO3400A | 1 | AO3400A | C20917 | 942-IRLML6344TRPBF |
| R1,R2,R3,R4,R5,R6,R8,R10,R15 | 10k | 9 | RC0603FR-0710KL | C98220 | 603-RC0603FR-0710KL |
| R7 | 180k | 1 | RC0603FR-07180KL | C123419 | 603-RC0603FR-07180KL |
| R9,R11 | 2.2k | 2 | RC0603FR-072K2L | C114662 | 603-RC0603FR-072K2L |
| R12 | 33k | 1 | RC0603FR-0733KL | C126359 | 603-RC0603FR-0733KL |
| R13,R16 | 1k | 2 | RC0603FR-071KL | C22548 | 603-RC0603FR-071KL |
| R14 | 1.8k | 1 | RC0603FR-071K8L | C185354 | 603-RC0603FR-071K8L |
| SW4 | RotaryEncoder_Switch | 1 | C18164805 | 652-PEC12R-4220F-S24 | PEC12R-4220F-S0024 |
| U1 | STM32G030F6Px | 1 | STM32G030F6P6TR | C529330 | 511-STM32G030F6P6TR |
| U2 | AP63205WU | 1 | AP63205WU-7 | C2071056 | 621-AP63205WU-7 |
| U3 | M24C02-WMN | 1 | M24C02-RMN6TP | C83836 | 511-M24C02-RMN6TP |
| U4 | NCP1117-3.3_SOT223 | 1 | NCP1117ST33T3G | C26537 | 863-NCP1117ST33T3G |
Ring Light
| Reference | Value | Qty | Manufacturer Part Number | LCSC | MOUSER |
|---|---|---|---|---|---|
| D1,D2,D3,D4,D5,D6,D7,D8,D9,D10,D11,D12,D13,D14,D15,D16 | LED | 16 | JE2835AWT-R-H40EA0000-N0000001 | C5220767 | 941-JE2835AWTH40EAN |
| R1,R2,R3,R4 | 0 | 4 | RC0603JR-070RL | C95177 | 603-RC0603JR-070RL |
Parts
63| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R8, R10, R15 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C4, C10 |
| 3 | 10nF | Capacitor_SMD:C_0603_1608Metric | C5, C6, C9 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric | C3, C7, C8 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R13, R16 |
| 2 | 2.2k | Resistor_SMD:R_0603_1608Metric | R9, R11 |
| 2 | 22uF | Capacitor_SMD:C_1206_3216Metric | C11, C12 |
| 2 | B340 | Diode_SMD:D_SMA | D1, D2 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D3, D4 |
| 1 | 1.8k | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | 180k | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 33k | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 4.7uH | Inductor_SMD:L_Vishay_IHLP-2525 | L1 |
| 1 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | AP63205WU | Package_TO_SOT_SMD:TSOT-23-6 | U2 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_GCT_DCJ200-10-A_Horizontal | J8 |
| 1 | Conn_01x02 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J9 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J2 |
| 1 | FZT1049ATA | FZT1049ATA:SOT230P700X180-4N | IC1 |
| 1 | Fan | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J4 |
| 1 | G*** | kibuzzard-64DFCA22 | kibuzzard-64DFCA22 |
| 1 | G*** | kibuzzard-64E1B8AF | kibuzzard-64E1B8AF |
| 1 | G*** | kibuzzard-65854A39 | kibuzzard-65854A39 |
| 1 | G*** | kibuzzard-6585337F | kibuzzard-6585337F |
| 1 | G*** | kibuzzard-65855076 | kibuzzard-65855076 |
| 1 | G*** | kibuzzard-64E1B90C | kibuzzard-64E1B90C |
| 1 | G*** | kibuzzard-65853391 | kibuzzard-65853391 |
| 1 | G*** | kibuzzard-64E666E4 | kibuzzard-64E666E4 |
| 1 | G*** | kibuzzard-6585330A | kibuzzard-6585330A |
| 1 | Light | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J3 |
| 1 | M24C02-WMN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
| 1 | OLED SSD1306 | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J5 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Bourns_Vertical_PEC12R-3x17F-Sxxxx | SW4 |
| 1 | STM32G030F6Px | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | TC2030-IDC | Tag-Connect:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J6 |
| 1 | USB_A_Stacked | Connector_USB:USB_A_CUI_UJ2-ADH-TH_Horizontal_Stacked | J1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_Palconn_UTC16-G | J7 |
The 62 most common of 63 parts.
Questions
How big is the Control board PCB?
It measures 100 × 35 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Control board use?
63 parts, built around the AP63205WU, FZT1049ATA, M24C02-WMN6 and B340. 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 Control board KiCad files?
From the Quard/MLight repository on GitHub, at the commit this page was made from: the board is hardware/control_board/control_board.kicad_pcb and its schematic hardware/control_board/control_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Control board 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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