# Openflexure Microscope Illumination Controller ## Description A board to control LEDs using an I2C IO expander. Intended for phase contrast imaging with the Openflexure Microscope. ## Project Details - **Owner:** vasyl - **Created:** 8/26/2021 - **Last Updated:** 6/29/2022 - **Visibility:** Public - **GitLab:** https://gitlab.com/openflexure/openflexure-phase-contrast-illumination - **Kitspace:** https://kitspace.org/boards/gitlab.com/openflexure/openflexure-phase-contrast-illumination/#openflexure-microscope-illumination-controller - **Download Gerbers:** https://kitspace.org/boards/gitlab.com/openflexure/openflexure-phase-contrast-illumination/openflexure-phase-contrast-illumination-ada6bb2-gerbers.zip ## Key Components ### 3V3 — [Power Symbol](https://www.flux.ai/usairemalamgeer/power-symbol.md) **Pins:** - P1 ### 3V3 — [Power Symbol](https://www.flux.ai/usairemalamgeer/power-symbol.md) **Pins:** - P1 ### 3V3 — [Power Symbol](https://www.flux.ai/usairemalamgeer/power-symbol.md) **Pins:** - P1 ### 3V3 — [Power Symbol](https://www.flux.ai/usairemalamgeer/power-symbol.md) **Pins:** - P1 ### 3V3 — [Power Symbol](https://www.flux.ai/usairemalamgeer/power-symbol.md) **Pins:** - P1 ### 3V3 — [Power Symbol](https://www.flux.ai/usairemalamgeer/power-symbol.md) **Pins:** - P1 ### 3V3 — [Power Symbol](https://www.flux.ai/usairemalamgeer/power-symbol.md) **Pins:** - P1 ### 3V3 — [Power Symbol](https://www.flux.ai/usairemalamgeer/power-symbol.md) **Pins:** - P1 ### 3V3 — [Power Symbol](https://www.flux.ai/usairemalamgeer/power-symbol.md) **Pins:** - P1 ### 3V3 — [Power Symbol](https://www.flux.ai/usairemalamgeer/power-symbol.md) **Pins:** - P1 ### A0 — Label **Pins:** - P1 - P2 ### A0 — Label **Pins:** - P1 - P2 ### A1 — Label **Pins:** - P1 - P2 ### A1 — Label **Pins:** - P1 - P2 ### A2 — Label **Pins:** - P1 - P2 ### A2 — Label **Pins:** - P1 - P2 ### D1 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Saturation Current: 93.2e-12A - Series Resistance: 0.42Ω - Emission Coefficient: 3.73 - Breakdown Voltage: 0V - Forward Voltage: 1.70 **Pins:** - ANODE - CATHODE ### D10 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Saturation Current: 1.88e-9A - Series Resistance: 0.0286Ω - Emission Coefficient: 2.00 - Breakdown Voltage: 50V **Pins:** - ANODE - CATHODE ### D11 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Emission Coefficient: 3.73 - Breakdown Voltage: 0V - Forward Voltage: 1.70 - Series Resistance: 0.42Ω - Saturation Current: 93.2e-12A **Pins:** - ANODE - CATHODE ### D12 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Saturation Current: 1.88e-9A - Series Resistance: 0.0286Ω - Emission Coefficient: 2.00 - Breakdown Voltage: 50V **Pins:** - ANODE - CATHODE ### D13 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Saturation Current: 93.2e-12A - Emission Coefficient: 3.73 - Forward Voltage: 1.70 - Breakdown Voltage: 0V - Series Resistance: 0.42Ω **Pins:** - ANODE - CATHODE ### D14 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Breakdown Voltage: 50V - Saturation Current: 1.88e-9A - Series Resistance: 0.0286Ω - Emission Coefficient: 2.00 **Pins:** - ANODE - CATHODE ### D15 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Saturation Current: 93.2e-12A - Emission Coefficient: 3.73 - Forward Voltage: 1.70 - Breakdown Voltage: 0V - Series Resistance: 0.42Ω **Pins:** - ANODE - CATHODE ### D16 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Breakdown Voltage: 50V - Saturation Current: 1.88e-9A - Series Resistance: 0.0286Ω - Emission Coefficient: 2.00 **Pins:** - ANODE - CATHODE ### D17 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Saturation Current: 93.2e-12A - Series Resistance: 0.42Ω - Breakdown Voltage: 0V - Forward Voltage: 1.70 - Emission Coefficient: 3.73 **Pins:** - ANODE - CATHODE ### D18 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Series Resistance: 0.0286Ω - Emission Coefficient: 2.00 - Saturation Current: 1.88e-9A - Breakdown Voltage: 50V **Pins:** - ANODE - CATHODE ### D19 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Series Resistance: 0.42Ω - Breakdown Voltage: 0V - Forward Voltage: 1.70 - Emission Coefficient: 3.73 - Saturation Current: 93.2e-12A **Pins:** - ANODE - CATHODE ### D2 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Breakdown Voltage: 50V - Saturation Current: 1.88e-9A - Emission Coefficient: 2.00 - Series Resistance: 0.0286Ω **Pins:** - ANODE - CATHODE ### D20 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Series Resistance: 0.0286Ω - Emission Coefficient: 2.00 - Saturation Current: 1.88e-9A - Breakdown Voltage: 50V **Pins:** - ANODE - CATHODE ### D21 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Series Resistance: 0.42Ω - Emission Coefficient: 3.73 - Forward Voltage: 1.70 - Breakdown Voltage: 0V - Saturation Current: 93.2e-12A **Pins:** - ANODE - CATHODE ### D22 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Series Resistance: 0.0286Ω - Emission Coefficient: 2.00 - Saturation Current: 1.88e-9A - Breakdown Voltage: 50V **Pins:** - ANODE - CATHODE ### D23 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Saturation Current: 93.2e-12A - Series Resistance: 0.42Ω - Emission Coefficient: 3.73 - Breakdown Voltage: 0V - Forward Voltage: 1.70 **Pins:** - ANODE - CATHODE ### D24 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Emission Coefficient: 2.00 - Series Resistance: 0.0286Ω - Saturation Current: 1.88e-9A - Breakdown Voltage: 50V **Pins:** - ANODE - CATHODE ### D25 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Saturation Current: 93.2e-12A - Breakdown Voltage: 0V - Emission Coefficient: 3.73 - Forward Voltage: 1.70 - Series Resistance: 0.42Ω **Pins:** - ANODE - CATHODE ### D26 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Breakdown Voltage: 50V - Saturation Current: 1.88e-9A - Emission Coefficient: 2.00 - Series Resistance: 0.0286Ω **Pins:** - ANODE - CATHODE ### D27 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Saturation Current: 93.2e-12A - Breakdown Voltage: 0V - Emission Coefficient: 3.73 - Forward Voltage: 1.70 - Series Resistance: 0.42Ω **Pins:** - ANODE - CATHODE ### D28 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Breakdown Voltage: 50V - Emission Coefficient: 2.00 - Saturation Current: 1.88e-9A - Series Resistance: 0.0286Ω **Pins:** - ANODE - CATHODE ### D3 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Breakdown Voltage: 0V - Emission Coefficient: 3.73 - Forward Voltage: 1.70 - Series Resistance: 0.42Ω - Saturation Current: 93.2e-12A **Pins:** - ANODE - CATHODE ### D4 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Series Resistance: 0.0286Ω - Saturation Current: 1.88e-9A - Emission Coefficient: 2.00 - Breakdown Voltage: 50V **Pins:** - ANODE - CATHODE ### D5 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Saturation Current: 93.2e-12A - Breakdown Voltage: 0V - Forward Voltage: 1.70 - Emission Coefficient: 3.73 - Series Resistance: 0.42Ω **Pins:** - ANODE - CATHODE ### D6 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Emission Coefficient: 2.00 - Series Resistance: 0.0286Ω - Saturation Current: 1.88e-9A - Breakdown Voltage: 50V **Pins:** - ANODE - CATHODE ### D7 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Saturation Current: 93.2e-12A - Series Resistance: 0.42Ω - Forward Voltage: 1.70 - Emission Coefficient: 3.73 - Breakdown Voltage: 0V **Pins:** - ANODE - CATHODE ### D8 — [PN Junction Diode](https://www.flux.ai/jharwinbarrozo/pn-junction-diode.md) - Series Resistance: 0.0286Ω - Saturation Current: 1.88e-9A - Emission Coefficient: 2.00 - Breakdown Voltage: 50V **Pins:** - ANODE - CATHODE ### D9 — [LED](https://www.flux.ai/jharwinbarrozo/led-tht.md) - Emission Coefficient: 3.73 - Forward Voltage: 1.70 - Breakdown Voltage: 0V - Series Resistance: 0.42Ω - Saturation Current: 93.2e-12A **Pins:** - ANODE - CATHODE ### INTERRUPT_OUTPUT — Label **Pins:** - P1 - P2 ### INTERRUPT_OUTPUT — Label **Pins:** - P1 - P2 ### J1 — [Connector 01x02](https://www.flux.ai/jharwinbarrozo/pin-header-01x02-254mm-vertical.md) - Part Type: Connector **Pins:** - Pin_1 - Pin_2 ### J2 — [Connector 01x04](https://www.flux.ai/jharwinbarrozo/connector-01x04-horizontal.md) - Part Type: Connector **Pins:** - Pin_1 - Pin_2 - Pin_3 - Pin_4 ### J3 — [Connector 01x04](https://www.flux.ai/jharwinbarrozo/connector-01x04-horizontal.md) - Part Type: Connector **Pins:** - Pin_1 - Pin_2 - Pin_3 - Pin_4 ### J4 — [Connector 01x01](https://www.flux.ai/jharwinbarrozo/2b1b7cc1-7964-2753-ada7-a6c5ed64f5ef.md) - Part Type: Connector **Pins:** - Pin_1 ### J5 — [Connector 01x01](https://www.flux.ai/jharwinbarrozo/2b1b7cc1-7964-2753-ada7-a6c5ed64f5ef.md) - Part Type: Connector **Pins:** - Pin_1 ### J6 — [Connector 01x01](https://www.flux.ai/jharwinbarrozo/2b1b7cc1-7964-2753-ada7-a6c5ed64f5ef.md) - Part Type: Connector **Pins:** - Pin_1 ### RESET — Label **Pins:** - P1 - P2 ### RESET — Label **Pins:** - P1 - P2 ### SCL — Label **Pins:** - P1 - P2 ### SCL — Label **Pins:** - P1 - P2 ### SCL — Label **Pins:** - P1 - P2 ### SDA — Label **Pins:** - P1 - P2 ### SDA — Label **Pins:** - P1 - P2 ### SDA — Label **Pins:** - P1 - P2 ### SJ1 — [Solder Jumper Normally Open](https://www.flux.ai/jharwinbarrozo/solder-jumper-normally-open.md) **Pins:** - P1 - P2 ### U1 — [MCP23008-E-ML](https://www.flux.ai/vasyl/mcp23008-e-ml.md) - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP23008-MCP23S08-Data-Sheet-20001919F.pdf - Manufacturer Part Number: MCP23008-E-ML - Part Type: Microcontroller - Manufacturer Name: Microchip Technology - Package or Case Code: 20-VFQFN - Package or Case Code: 20-VFQFN **Pins:** - ~RESET~ - A0 - A1 - A2 - GP0 - GP1 - GP2 - GP3 - GP4 - GP5 - GP6 - GP7 - INT - SCL - SDA - VDD - VSS *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vasyl/openflexure-microscope-illumination-controller](https://www.flux.ai/vasyl/openflexure-microscope-illumination-controller).* --- *Generated from [https://www.flux.ai/vasyl/openflexure-microscope-illumination-controller](https://www.flux.ai/vasyl/openflexure-microscope-illumination-controller)*