4 layers50 × 50 mm
Load
AresEnsea/2324_Projet2A_AresCFR
Ce repository GitHub regroupe l'ensemble des projets & documents réalisés par l'association Ares pour la Coupe de France de Robotique 2024 – Farming Mars.
56 parts7
2 layers76.7 × 57 mm
Shield
diminDDL/PicoLasDriver1This repository houses the necessary components for a touchscreen-based controller/driver for the Picolas series of laser diode boards, including hardware schematics, embedded firmware, and a Python GUI.
- Size
- 76.7 × 57 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 82
- Nets
- 59
- Pads
- 233
- Tracks, vias
- 377, 201
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 12 Oct 2022
- Updated
- 11 Aug 2023
Overview
Shield is an open-source printed circuit board by diminDDL, from the diminDDL/PicoLasDriver repository on GitHub, published under the MIT licence. It is a 2-layer board of 76.7 × 57 mm with 82 parts on 59 nets, routed with 377 tracks and 201 vias.
It is built around the ARDUINO UNO R3, OPA2727AID and MIC5205-3.3YM5, with the BSS138 among its other parts. Its parts include 40 resistors, 12 capacitors, 8 diodes, 7 connectors and 6 transistors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ARDUINO UNO R3
Arduino UNO R3 Printed Circuit Board ModuleArduinoUncategorised
OPA2727AID
SOIC-8-40℃~+125℃ -6V~-2V、2V~6V 100pA 150uV 2 20MHz 30V/us 4.3mA 4V~12V 500pA 55mA 600nV/℃ 6nV/√Hz@100kHz 94dB Reverse-phase input protection SOIC-8 Precision Op Amps ROHSTexas InstrumentsOperational Amplifier
MIC5205-3.3YM5
SOT-23-5-40℃~+85℃@(Ta) 1 150mA 200mV@(50mA) 20V 2uA 3.3V 70dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
README
README.mdPicolas Laser Diode Controller/Driver
This repository houses the necessary components for a touchscreen-based controller/driver for the Picolas series of laser diode boards, including hardware schematics, embedded firmware, and a Python GUI.
Features
- Supports control of analog models with trigger pins and analog voltage for adjusting the current setpoint.
- Designed to work seamlessly with a Raspberry Pi SBC and a touchscreen.
- Configuration flexibility through JSON file.
Getting Started
Prerequisites
- Raspberry Pi with a touchscreen
- Picolas series laser diode board (analog models with trigger pins)
Installation
- Clone the repository.
- Follow the setups in howto.md
- Configure a startup script to initiate the Python program automatically on boot. Additionally, it's advisable to disable the touchscreen until the program starts.
- Consider enabling the overlay filesystem to safeguard your data.
GUI Layout & Functions
- "+" and "-" buttons: Increase or decrease values. They accelerate when held.
- "Single/Pulsed" modes: Toggle single pulse operation.
- "Global/Local pulse count": View total pulse count and current session count.
- "ADC readout": Display the raw 12-bit ADC value from the photodiode amplifier.
- "Lock icon": Lock or unlock the device to prevent accidental value changes.
- "IO1-4": IO pin toggle buttons.
- "Enable/Disable": Control the pulse output.
- Error readout: Reads out the errors and other state information.
⚠️ Important: It is recommended to turn off the output when adjusting settings to prevent potential glitches on the output.
Hardware & Communication
- The board connects to the Raspberry Pi via USB, with a communication frequency of every 100ms.
- Auto-reconnect and fault indications in the Python GUI.
- LED indicators for the board's internal states.
- GPIO pins provide a high impedance 5V when active.
- Over-voltage protection up to 5V.
- Photodiode amplifier module design and guidance provided.
Pinout of the connector:
Operating Mechanism
The board keeps the Picolas driver's enable pin high and uses the trigger pin to generate impulses. An analog DAC sets the voltage to control the output current limit. If the E-STOP pin is triggered, the system becomes non-functional until a power cycle.
License
This project is licensed under the MIT License.
Parts
82| Qty | Value | Footprint | References |
|---|---|---|---|
| 21 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R10, R11, R18, R19, R21, R22, R24, R25, R27, R28, R30, R31, R34, R38, R39 +5 |
| 8 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4, R12, R13, R14, R15, R16, R17 |
| 7 | N.P. | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R20, R23, R26, R29, R32, R33 |
| 6 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 5 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3, C5, C8, C12 |
| 4 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C6, C7, C10 |
| 3 | 1N4148 | Diode_SMD:D_SOD-123 | D1, D2, D3 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R35, R36 |
| 2 | 50 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R37 |
| 2 | INTR | Jumper:SolderJumper-2_P1.3mm_Bridged2Bar_RoundedPad1.0x1.5mm | JP2, JP3 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2 |
| 1 | 1000u | Capacitor_SMD:CP_Elec_10x10 | C1 |
| 1 | 3p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9 |
| 1 | 470p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11 |
| 1 | Arduino_UNO_R3 | Module:Arduino_UNO_R3 | A1 |
| 1 | BREAK | Connector_PinSocket_2.54mm:PinSocket_2x03_P2.54mm_Vertical | J7 |
| 1 | E-STOP | TerminalBlock:TerminalBlock_Altech_AK300-3_P5.00mm | J2 |
| 1 | ERR | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D5 |
| 1 | HW E-STOP | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP1 |
| 1 | IO | TerminalBlock_Altech:Altech_AK300_1x06_P5.00mm_45-Degree | J4 |
| 1 | LDP-C BOB | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J5 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D7 |
| 1 | MCP4725xxx-xCH | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | MIC5205-3.3YM5 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | OPA2727 | Package_SO:SO-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | OUT_EN | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D4 |
| 1 | SFH 213 | LED_THT:LED_D5.0mm_IRGrey | D8 |
| 1 | TRG | Connector_Coaxial:SMA_Amphenol_901-144_Vertical | J1 |
| 1 | TRGR'D | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D6 |
| 1 | UART | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J3 |
| 1 | VIN | TerminalBlock:TerminalBlock_Altech_AK300-2_P5.00mm | J6 |
Questions
How big is the Shield PCB?
It measures 76.7 × 57 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Shield use?
82 parts, built around the ARDUINO UNO R3, OPA2727AID, MIC5205-3.3YM5 and BSS138. 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 Shield KiCad files?
From the diminDDL/PicoLasDriver repository on GitHub, at the commit this page was made from: the board is HW/shield/shield.kicad_pcb and its schematic HW/shield/shield.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Shield 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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