When I installed solar equipment on my home, I bought all the panels and an obsolete but functional inverter from a solar company I used to work for. Ya, it was cheap, but unfortunately the inverter didn't have any monitoring or logging functionality at all. I looked at a few commercially available systems, but all of them had features I didn't need, and none of them had logging features I liked. So, I set out to make my own using a Particle Photon, a microcontroller in a neat 24-pin DIP package with native wifi capability, and the great Open Energy Monitor libraries. Now this thing has been running flawlessly for 4 years on the original prototyping board which looks very bad, so I decided to build a 2nd generation unit with a neat printed PCB from PCBWay, and a few added features like motion sensing backlight for the display, and better connectors for the MCU, display, and input connections.

What is the buck converter?A buck converter is a DC-to-DC power converter which steps down voltage from its input to its output. It is a class of switched-mode power supply typically containing at least two semiconductors and at least one energy storage element, a capacitor, inductor, or the two in combinationHow can i understand it is working?Leds on board, indicates the system is working without problem. Each voltage level has one led, one is for 5V and the other one is for 3.3V.Can i use 5V and 3.3V at the same time?It can be used separately or can be used simultaneously. Application NotesThe heatsink is not a requirement but can be used when if needed. ( SK104 heatsing is recommended. )Tantalum capacitors 22uF used for AMS1117-3.3V.

Basic LM2576 5v DC ConverterABOUTThe LM2576 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, and an adjustable output version.NOTE: L1 = L-US100UH3ASchematicBOM

General Features of AMW007Self-contained ultra-low power Wi-Fi module with support for ZentriOS-WL Firmware, including industry standard SSL/TLS secure TCP/IP network stack.Board InterfacesUART TX & RX8 GPIOsADCResetWakeChip Enable

With this little high voltage module you can bias radiation detectors!

Se utiliza junto la otra placa, como puede ser Arduino, PIC, raspberri py entre otras. Este peque?o modulo es un pixel que proporciona calor en vez de un LED RGB, de esta manera los organos y dispositivos se pueden dise?ar para que tenga tantos input de calor como quieran.

This is a simple LDR dark sensor project which is designed to turn ON a relay (when there is light) and turn it OFF(when there is no light). You can connect a domestic light bulb or mabye fan. u should only give a supply of (9v - 12v) .you will need : LDR , NPN transistor (SMD) , 5V relay , 220Ω SMD RESISTOR (3) , 220K RESISTOR , SMD LED (2) . INSTRUCTIONS ,FIRST SOLDER THE COMPONENTS TO THE BOARD.THEN SUPPLY POWER TO THE MODULE (9V - 12V).PLACE THIS MODULE IN A PLACE WHERE DAYLIGHT AND DARKNESS STRIKES. WHEN THE LIGHT STRIKES THE LDR, THE RELAY TURNS OFF AND WHEN THERE IS NO LIGHT, IT TURNES OFF.pls like my project

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### DESCRIPTIONThis project describes the design, implementation and validation of a cosmic ray detector based on a silicon photomultiplier, a light sensitive device, which is generally constructed by a matrix of avalanche photodiodes operating in Geiger mode.The detector is part of a project for the development of educational and training material that will be used in the undergraduate and postgraduate Physics laboratory programs, as well as experimental physics research equipment that will be used in stratospheric flights for the study of cosmic rays .### TECHNICAL DETAILS / COMPONENTSThe detector called DRY_SIPM1, has been proposed as a payload for stratospheric flights and orbital flights, so a maximum size has been defined that must comply with the PC104 standard in relation to the electronics implemented.The first version based on arduino nano an dcomercial step-up regulator and was tested on flight in november of 2017 with a balloon stratosferic. For this version the board was made ofn the CNC in our labThe second version based on ARM CORTEX M4. In this version, the design of this PCB is new and implement the all electronic for the power supply the detector, monitoring and acquisition of pulse and othe enviorement variables (pressure, altitutde, temperature).The fundamental principle of operation is detect a pulse with a ]~500ns of duration and ~300mV of amplitud. Then the PCB has a stage of amplification and peak detection, that generate a charge on a capacitor and the voltage of this capacitor was read for the MCU and correlation this voltage with the original amplitud of the pulse.### LEARN / TOPIC / BUILD INSTRUCTIONSCurrently, it has an assembled PCB, design that was sent to be manufactured in PCBWAY and that has a high quality. The assembly was made in Mexico and validation tests are being carried out on each of the systems that make up the detector.

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### DESCRIPTION### TECHNICAL DETAILS / COMPONENTS### LEARN / TOPIC / BUILD INSTRUCTIONS

### DESCRIPTIONLed pcb-part1### TECHNICAL DETAILS / COMPONENTS8 led -paralel connection, 1 ad input for Fotorezistor,1 central Led (ir led)### LEARN / TOPIC / BUILD INSTRUCTIONSConnect led board with IC board.

Photon Animator BoardParticle Photon with DFPlayer along with Animatronic drivers for Gemmi Frogz, Furby, Billy Bass, and other creatures.This project uses prebuilt modules with serface mounted part on them. The Board itself has only thru-hole components so it is easily assampled, soldered and mounted.