2 layers20 × 43 mm
Trans led board
dektronics/printalyzer-uvdensitometer
UV/VIS Reflection and Transmission Densitometer for Photographic Darkroom Use
21 parts6
4 layers105 × 38 mm
Printalyzer uvdensitometer
dektronics/printalyzer-uvdensitometer6UV/VIS Reflection and Transmission Densitometer for Photographic Darkroom Use
- Size
- 105 × 38 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 101
- Nets
- 74
- Pads
- 351
- Tracks, vias
- 615, 143
- Pours
- 22
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Sep 2023
- Updated
- 24 Sep 2025
Overview
Printalyzer uvdensitometer is an open-source printed circuit board by dektronics, from the dektronics/printalyzer-uvdensitometer repository on GitHub. It is a 4-layer board of 105 × 38 mm with 101 parts on 74 nets, routed with 615 tracks and 143 vias.
It is built around the STM32L072KZT6, MCP9808-E/MS and TSL25853PM, with the TC1301A-APAVMF, USBLC6-2SC6 and ESDALC6V1W5 among its other parts. Its parts include 27 capacitors, 24 resistors, 12 diodes, 6 ICs and 6 switches. It belongs with the STM32 boards of this library.
Main components
6
STM32L072KZT6
LQFP-32(7x7)-40℃~+85℃ 1.65V~3.6V 12bit 12bit 192KB 20KB 25 32 Bit 32MHz 6KB ARM Cortex-M0+ Built-in FLASH LQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
MCP9808-E/MS
MSOP-8-40℃~+125℃ 13bit 2.7V~5.5V 250ms I2C、SMBus ±0.5℃ MSOP-8 Temperature Sensors ROHSMicrochip TechnologyTemperature Sensors
TSL25853PM
OLGA-6(1x2)1.8V OLGA-6(1x2) Ambient Light Sensors ROHSAdvanced Monolithic SystemsAmbient Light Sensors
TC1301A-APAVMF
DFN-8-EP(3x3)-40℃~+125℃ 1.8V、2.63V、3.3V 150mA、300mA 180mV@(300mA) 180uA 2 58dB@(100Hz) 6V Fixed Positive DFN-8-EP(3x3) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
ESDALC6V1W5
SOT-323-5-40℃~+150℃ 1uA 25W 3V 6.1V 6.1V 7.5pF Four channels IEC 61000-4-2 TVS Unidirectional SOT-323-5 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
README
README.mdPrintalyzer UV/VIS Densitometer
Introduction
The Printalyzer UV/VIS Densitometer is a project whose goal is the creation of an affordable reflection and transmission densitometer for photographic darkroom use.
It differs from the original B&W densitometer product in that it adds a UV measurement channel for alternative processes needs.
This project will use the B&W Printalyzer Densitometer DPD-100 design as its basis, and will make all efforts to share the same mechanical design and components.
This project is currently very much in the R&D stage, and should not be considered complete or functional at this point. It may change substantially as initial prototypes are constructed and tested.
Project Layout
Hardware
The "hardware" directory contains KiCad projects with the complete circuit schematics, bill-of-materials, and PCB layouts.
Software
The "software" directory contains all the source code for the bootloader and firmware that runs on the hardware.
The desktop software to interface with this densitometer from a computer is maintained in a separate repository, as it contains support for multiple densitometer devices.
Enclosure
The "enclosure" directory contains any CAD models and related resources necessary to physically assemble the device.
License
Individual directories will contain LICENSE files as needed, with relevant details. Generally, the hardware will be CC BY-SA and the software will be BSD 3-Clause. However, external resources may have their own individual license terms.
Parts
101| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5, C7, C8, C9, C18, C21, C23 |
| 8 | 1uF | Capacitor_SMD:C_0603_1608Metric | C6, C11, C12, C14, C15, C16, C17, C25 |
| 7 | ESD321 | lib_fp:D_TI_SOD-523_DYA0002A | D5, D6, D7, D9, D10, D11, D12 |
| 6 | 330R | Resistor_SMD:R_0603_1608Metric | R2, R4, R9, R12, R14, R17 |
| 5 | 100K | Resistor_SMD:R_0603_1608Metric | R3, R5, R11, R13, R15 |
| 5 | 10K | Resistor_SMD:R_0603_1608Metric | R6, R16, R21, R22, R24 |
| 5 | Tab | PCM_kikit:Tab | REF1, REF2, REF4, REF5, REF6 |
| 4 | LED | lib_fp:SunLike_LED_S1S0 | D1, D2, D3, D4 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 4 | SW_Push | lib_fp:ESwitch_TL1105_6mm_H7.5mm | SW1, SW2, SW3, SW4 |
| 3 | Fiducial | Fiducial:Fiducial_1mm_Mask2mm | FID1, FID2, FID3 |
| 2 | 10nF | Capacitor_SMD:C_0603_1608Metric | C13, C22 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1, C26 |
| 2 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C10, C19 |
| 2 | 2K | Resistor_SMD:R_0603_1608Metric | R7, R8 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C20, C24 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R18, R19 |
| 2 | 600R | Inductor_SMD:L_0603_1608Metric | FB1, FB2 |
| 2 | MountingHole | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H5, H6 |
| 1 | 1.8V | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 16.5k | Resistor_SMD:R_0603_1608Metric | R23 |
| 1 | 200K | Resistor_SMD:R_0603_1608Metric | R20 |
| 1 | 22R | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 3.3V | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | 390K | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C27 |
| 1 | 500mA | lib_fp:BF_0ZCJ_1206 | F1 |
| 1 | Conn_01x04 | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J4 |
| 1 | DNI | Connector:Tag-Connect_TC2070-IDC-FP_2x07_P1.27mm_Vertical | J2 |
| 1 | Display Connector | lib_fp:ER-CON30HT-1 | J3 |
| 1 | ESDALC6V1W5 | lib_fp:SOT323-5L | D8 |
| 1 | G3 | lib_fp:Dektronics-logo | LOGO |
| 1 | LOGO | lib_fp:Printalyzer-logo-16_9mm | G1 |
| 1 | MCP9808 | Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.7x1.4mm | U7 |
| 1 | MIC4812 | lib_fp:Micrel_MSOP-10-1EP_3x3mm_P0.5mm_EP1.73x1.7mm_ThermalVias | U3 |
| 1 | OSHW-logo_5mm | lib_fp:OSHW-logo_5mm | G4 |
| 1 | STM32L072KZT6 | lib_fp:ST_LQFP32 | U2 |
| 1 | SW_Boot | lib_fp:Panasonic_EVQP7C_EVQP7L | SW6 |
| 1 | SW_Detect | lib_fp:CK_KSU213WLFG | SW5 |
| 1 | TC1301A-APA | Package_SO:MSOP-8_3x3mm_P0.65mm | U5 |
| 1 | TSL2585 | lib_fp:AMS_TSL2585_OLGA-6_2x1mm_P0.65mm | U1 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | USB_C_Receptacle_USB2.0 | lib_fp:USB_C_Receptacle_GCT_USB4105 | J1 |
More from dektronics/printalyzer-uvdensitometer
1Similar boards
- 4 layers105 × 38 mm
- 4 layers61.3 × 61.3 mm
- 4 layers50 × 100 mm
- 4 layers70 × 82.5 mm
MB1814
lorenalam/TFG
Repositorio con todo el contenido del TFG "DESARROLLO DE UNA PCB GATEWAY PARA LA GESTIÓN DE SEÑALES DE UN VEHÍCULO SEGÚN EL BUS CAN E INTEGRACIÓN EN UN PROTOTIPO ‘FORMULA STUDENT’ "
210 parts - 4 layers65 × 56 mm
- 4 layers121.3 × 123.8 mm
- 4 layers103.6 × 114 mm
- 4 layers56 × 114 mm
STM32 x RFM96 v2
collins-emasi/KiCAD-PROJECTS-PCB
In this repository, I will be sharing some of the project I'm working on with KiCAD software.
103 parts1
Questions
How big is the Printalyzer uvdensitometer PCB?
It measures 105 × 38 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Printalyzer uvdensitometer use?
101 parts, built around the STM32L072KZT6, MCP9808-E/MS, TSL25853PM and TC1301A-APAVMF. 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 Printalyzer uvdensitometer KiCad files?
From the dektronics/printalyzer-uvdensitometer repository on GitHub, at the commit this page was made from: the board is hardware/main-board/main-board.kicad_pcb and its schematic hardware/main-board/main-board-buttons.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Printalyzer uvdensitometer design in my own project?
Its repository states no licence, so its author keeps all rights: ask dektronics before reusing the design.