| Model | CPU | RAM | Best For |
|---|---|---|---|
| Raspberry Pi 5 | Quad-Core ARM Cortex-A76 | 8 GB | Advanced computing, AI, Robotics, Edge applications |
| Raspberry Pi 4 | Quad-Core ARM Cortex-A72 | 2 GB / 4 GB / 8 GB | Desktop replacement, IoT, Media servers |
| Raspberry Pi 3 B+ | Quad-Core ARM Cortex-A53 | 1 GB | Learning, Prototyping, Simple IoT solutions |
| Arduino Uno R4 | 32-bit ARM Cortex-M4 | NA (Microcontroller) | Intermediate automation, robotics, control systems |
| Arduino Uno | 16 MHz ATmega328P | NA (Microcontroller) | Beginner electronics, sensor experiments |
Q: Can I use Arduino and Raspberry Pi together?
A: Yes, many projects combine Pi's computing power with Arduino's real-time control.
Q: Which is better for robotics?
A: Raspberry Pi handles vision and AI; Arduino excels in motor/sensor control. Use both for best results.
Q: What language do they use?
A: Arduino uses C/C++; Raspberry Pi supports Python, C++, Java, and more.
Rigol is a leading provider of high-performance test and measurement equipment. Below is a detailed comparison of key models across different categories:
| Category | Model | Key Features | Best For |
|---|---|---|---|
| Oscilloscope | DS1054Z | 50 MHz, 4 Ch, 1 GSa/s, Deep Memory | Waveform analysis, entry-level lab |
| Oscilloscope | MSO5074 | 70 MHz, Mixed Signal, 4 analog + 16 digital | Embedded debugging, logic testing |
| Power Supply | DP832 | 3 Ch, Programmable, 195W, USB/LAN | Prototyping, testing multiple rails |
| Power Supply | DP2031 | DC Programmable, 2 Ch, 30V/3A | Development labs, student labs |
| Function Generator | DG1022Z | 25 MHz, 2 Ch, Arbitrary Waveform, Modulation | Signal simulation, sensor testing |
| Function Generator | DG811 | 10 MHz, Basic AWG, USB | Entry-level labs, education |
| Spectrum Analyzer | DSA815 | 9 kHz – 1.5 GHz, Tracking Generator | RF analysis, EMI testing |
| Spectrum Analyzer | RSA3030E | 3 GHz, Real-time, advanced triggering | Wireless testing, R&D |
| Multimeter | DM3058E | 5½ Digit, Benchtop, USB | High-precision voltage/current checks |
| Logic Analyzer | LA1016 | 16 Channels, USB, 100 MHz | Digital circuit debugging, I2C/SPI analysis |
Q: What's the difference between DS1054Z and MSO5074?
A: DS1054Z is a basic 4-channel scope, while MSO5074 includes logic analysis (digital + analog), ideal for embedded work.
Q: Can I control Rigol instruments remotely?
A: Yes, many models support USB, LAN, or RS-232 for remote automation using SCPI commands or vendor software.
Q: Which model is best for RF work?
A: For entry-level RF, go with the DSA815; for advanced work, the RSA series offers real-time spectrum analysis.
Pro'sKit offers a wide variety of affordable, high-quality hand tools, soldering equipment, and electronics accessories—ideal for engineers, technicians, and hobbyists alike. Here's a comparison of 10 essential Pro'sKit items:
| Category | Model | Key Features | Best For |
|---|---|---|---|
| Tool Kit | 1PK-940NB | 30+ Tools, ESD Case, Soldering Set | Complete electronics assembly |
| Soldering Station | SS-969B | 60W, Temperature Control, ESD-Safe | Repair and hobby soldering |
| Multimeter | MT-1232 | Auto-range, Backlight, Compact | Basic voltage/current testing |
| Precision Tweezers | 1PK-3171-T4 | Anti-magnetic, Fine Tip, Stainless Steel | SMD handling, IC placement |
| Wire Stripper | 8PK-3001D | Auto Stripping, Adjustable Gauge | Wire prep for soldering |
| Crimping Tool | CP-376TR | Multi-function, Terminal crimper | Connector & pin work |
| Hand Tools Set | PK-15308BM | Pliers, Cutters, Screwdrivers | Everyday repair & maintenance |
| ESD Mat | 1PK-930 | Anti-static, Durable, Easy to Clean | Workstation protection |
| Soldering Iron | 1PK-1115 | Temp Adjustable, ESD-Safe Handle | Basic soldering tasks |
| Heat Gun | 1PK-3800A | Variable Temp Control, Compact | Heat shrinking, reflow repair |
Q: Is Pro'sKit quality good for professional use?
A: Yes, many Pro'sKit tools are widely used by technicians in electronics repair, manufacturing, and field service thanks to their durability and affordability.
Q: What's the difference between a soldering station and a soldering iron?
A: A soldering station offers better control (temperature, ESD safety), while a basic soldering iron is portable and simple but less precise.
Q: Are Pro'sKit tools available with certification?
A: Many tools meet international safety and quality certifications (like CE, RoHS); check individual product specifications for details.
This section introduces key electronic components used in nearly all devices and circuits. Knowing how these work helps with troubleshooting, designing, and prototyping.
ICs are silicon chips that can contain hundreds or thousands of transistors. Common types include:
Resistors control the current in a circuit. Measured in Ohms (Ω). Types include carbon film, metal film, and variable resistors (potentiometers).
| Color | Digit | Multiplier | Tolerance |
|---|---|---|---|
| Black | 0 | x1 | – |
| Brown | 1 | x10 | ±1% |
| Red | 2 | x100 | ±2% |
| Orange | 3 | x1k | – |
| Yellow | 4 | x10k | – |
| Green | 5 | x100k | ±0.5% |
| Blue | 6 | x1M | ±0.25% |
| Violet | 7 | x10M | ±0.1% |
| Gray | 8 | x100M | ±0.05% |
| White | 9 | x1G | – |
| Gold | – | x0.1 | ±5% |
| Silver | – | x0.01 | ±10% |
Used to store and release energy. Types include:
Transistors are semiconductors that act as switches or amplifiers. Two main types:
Pins: 1 - Emitter, 2 - Base, 3 - Collector
To test: Apply a small voltage to base, current flows from collector to emitter.
Pins: 1 - Gate, 2 - Drain, 3 - Source
To switch: Apply voltage (>Vth) to gate to allow current through drain-source.
Q: How do I read resistor values using color bands?
A: Use the first two bands for digits, third for multiplier, and fourth (optional) for tolerance. Example: Red-Violet-Brown-Gold = 270Ω ±5%
Q: Why are some capacitors marked with codes like "104"?
A: It’s shorthand. "104" means 10 followed by 4 zeros in pF = 100,000 pF or 0.1μF.
Q: Can I replace an NPN transistor with a PNP one?
A: No. They operate with opposite polarities. You must match type and pinout exactly.