Buch: Logic Analyzer im Einsatz
Schritt-für-Schritt-Anleitungen führen Sie in die Analyse moderner Protokolle von I²C, SPI, UART, RS-232, NeoPixel, WS28xx, HD44780 und 1-Wire ein. Anhand von zahlreichen Experimentierschaltungen mit dem Raspberry Pi Pico, Arduino Uno und dem Bus Pirate üben Sie die praxisnahe Anwendung gängiger USB-Logikanalysatoren ein.
Alle in diesem Buch vorgestellten Experimentierschaltungen wurden vollständig getestet und sind funktionsfähig. Die notwendigen Programmlistings sind enthalten, es sind keine besonderen Programmier- oder Elektronikkenntnisse für diese Schaltungen notwendig. Es werden die Programmiersprachen MicroPython und C mit den Entwicklungsumgebungen Thonny und Arduino IDE eingesetzt.
Dieses Buch verwendet mehrere Modelle flexibler und weit verbreiteter USB-Logikanalysatoren und zeigt die Stärken und Schwächen jeder Preisklasse. Sie werden kennenlernen, welche Kriterien für Ihre Arbeit wichtig sind und in der Lage sein, das für Sie passende Gerät zu finden.
Egal ob Arduino, Raspberry Pi oder Raspberry Pi Pico: Die abgebildeten Beispielschaltungen ermöglichen einen schnellen Start in die Protokollanalyse und können auch als Grundlage für eigene weitere Experimente dienen.
Sie werden alle wichtigen Begriffe und Zusammenhänge kennenlernen, eigene Experimente durchführen, selbstständig Protokolle analysieren und nach der Lektüre dieses Buches – im Bereich der digitalen Signale und Protokolle – ein umfassendes Wissen aufgebaut haben.
USB Logic Analyzer (8 Kanäle, 24 MHz)
Dieser USB Logic Analyzer ist ein 8-Kanal-Logikanalysator, bei dem jeder Eingang doppelt für die analoge Datenaufzeichnung dient. Es eignet sich perfekt zum Debuggen und Analysieren von Signalen wie I²C, UART, SPI, CAN und 1-Wire. Dabei wird ein digitaler Eingang, der mit einem zu testenden Gerät (DUT) verbunden ist, mit einer hohen Abtastrate abgetastet. Die Verbindung zum PC erfolgt via USB.
Technische Daten
Kanäle
8 digitale Kanäle
Maximale Abtastrate
24 MHz
Maximale Eingangsspannung
0 V ~ 5 V
Betriebstemperatur
0°C ~ 70°C
Eingangsimpedanz
1 MΩ || 10 pF
Unterstützte Protokolle
I²C, SPI, UART, CAN, 1-Wire etc.
PC-Verbindung
USB
Abmessungen
55 x 28 x 14 mm
Downloads
Software
Dieses Bundle enthält:
Buch: Logic Analyzer im Einsatz (Einzelpreis: 40 €)
USB Logic Analyzer (8 Kanäle, 24 MHz) (Einzelpreis: 20 €)
USB-Kabel
Jumper Wire Ribbon Kabel
The tinySA Ultra+ ZS-407 is a compact, handheld spectrum analyzer and signal generator. Covering 100 kHz to 7.3 GHz in Ultra mode, it lets you visualize and analyze RF signals from HF right through many modern wireless bands – and can even spot signals up to ~12 GHz thanks to harmonic tracking.
The intuitive 4-inch resistive touchscreen and rechargeable battery make it great for fieldwork, while features like a built-in signal generator, switchable bandpass filters, step attenuator, USB-PC control and auto-calibration add serious versatility.
Features
Screen size: 4 inch (480 x 320)
Spectrum Analyzer for 0.1-900 MHz or, with Ultra mode enabled up to 7.3 GHz, level calibrated up to 7.3 GHz. Can observe signals up to 12 GHz
Signal Generator with sine wave output between 0.1-900 MHz or square wave up to 6.3 GHz or RF test signal output up to 7.3 GHz when not used as Spectrum Analyzer.
Switchable resolution bandpass filters from 200 Hz to 850 kHz
Built-in 20 dB optional LNA
Color display showing max 450 points providing gapless covering up to the full frequency range.
MicroSD card slot for storing measurements, settings and screen captures.
Specifications (Spectrum Analyzer)
Input frequency range from 100 kHz to 900 MHz in normal mode and up to 7.3 GHz with ULTRA mode enabled
Input impedance 50 ohm when input attenuation set to 10 dB or more.
Selectable manual and automatic input attenuation between 0 dB and 31 dB in 1 dB steps when LNA not active
Maximum +/-5V DC input
Absolute maximum input level of +6 dBm with 0 dB internal attenuation
Absolute maximum short term peak input power of +20 dBm with 30 dB internal attenuation
Suggested maximum input power of +0 dBm with internal attenuation in automatic mode
For best measurements keep input power below -25 dBm
Input Intercept Point of third order modulation products (IIP3) of +15 dBm with 0 dB internal attenuation
1 dB compression point at -1 dBm with 0 dB internal attenuation
Power detector resolution of 0.5 dB and linearity versus frequency of ±2 dB below 5.3 GHz, ±5dB between 5.3 GHz and 6 GHz
Minimum burst length for correct level measurement at 850 kHz RBW in zero span mode of 50 microseconds
Absolute power level accuracy after power level calibration of ±2 dB
Built-in optional 20 dB LNA with Noise Figure of 5 dB up to 6 GHz
Lowest discernible signal without LNA at 30 MHz using a resolution bandwidth of 30 kHz of -102 dBm
Lowest discernible signal with LNA at 30 MHz using a resolution bandwidth of 200 Hz of -145 dBm
Frequency accuracy equal to the selected resolution bandwidth
Phase noise at 30 MHz of -108 dB/Hz at 100 kHz offset and -115 dB/Hz at 1MHz offset
Spur free dynamic range when using a 30 kHz resolution bandwidth of 70 dB
Resolution filters with a width of 0.2, 1, 3, 10, 30, 100, 300, 600 and 850 kHz
On screen resolution of 51, 101, 145, 290 or 450 measurement points.
Scanning speed of over 1000 points/second using largest resolution filters.
Automatic optimization of actual scanning points to ensure coverage of the whole scan range regardless of the chosen resolution bandwidth
Spur suppression option for assessing if certain signals are internally generated or actually present in the input signal
Headphone output for listening to the demodulated audio (AM only). Stereo connector with or without microphone, high impedance is louder, short protected
Specifications (Signal Generator)
Sine wave output with harmonics below -40 dB of fundamental from 100 kHz to 900 MHz
Output level selectable in 1 dB steps between -115 dBm and -19 dBm
Above 800 MHz choice of two output modes:
Cleanest signal mode: square wave, up to 6 GHz with coarse frequency steps and less accurate output level
Highest accuracy mode: reduced harmonics with possibly strong spurs up to 7.3 GHz with frequency resolution equal to below 800 MHz and fine output level steps
Level accuracy ±2 dB up to 800 MHz between -72 dBm and -19 dBm, less accuracy below -72 dBm, even less accuracy below -110 dBm
Output frequency resolution 57.2 Hz
Optional AM or FM modulation frequencies between 50 Hz and 5 kHz (AM) or 1 kHz (FM) or sweep over selectable frequency span
AM modulation depth between 10% and 100%
FM deviation between 1 kHz and 300 kHz
Optional output level sweep over maximum the entire output level range
Included
1x tinySA Ultra+ ZS407 Spectrum Analyzer
2x SMA connection cables
1x Barrel connector
1x Antenna with SMA connector
1x USB-C cable
1x microSD card (32 GB)
Downloads
Wiki
This bundle includes the Red Pitaya STEMlab 125-14 PRO Gen 2 Starter Kit and the new book "Experimenting with Red Pitaya STEMlab Gen 2".
The Red Pitaya STEMlab 125-14 PRO Gen 2 Starter Kit is a powerful and flexible platform for signal processing, data acquisition, and electronic measurement applications. Designed for engineers, developers, researchers, and educators, this kit provides everything required to start building advanced measurement and control systems.
At the core of the kit is the STEMlab 125-14 PRO Gen 2 board, an upgraded and ultra-lightweight development platform. Powered by the Xilinx Zynq-7010 SoC with 512 MB of RAM, it combines FPGA programmability with ARM processing power to enable high-performance instrumentation and custom signal-processing solutions.
The board offers 14-bit ADC and DAC resolution, a 125 MS/s sampling rate, an input range of ±20 V, and up to 60 MHz bandwidth. Its improved low-noise analog front-end, USB-C connectivity, and compact design make it suitable for demanding applications such as RF development, radar systems, photonics research, software-defined radio (SDR), and industrial automation.
The Starter Kit includes all essential accessories for immediate use: a microSD card with preinstalled operating system, power supply, Ethernet cable for remote access, two 100 MHz oscilloscope probes, and SMA-to-BNC adapters for flexible signal connections.
The Red Pitaya STEMlab 125-14 PRO Gen 2 Starter Kit is an excellent platform for rapid prototyping, FPGA development, measurement instrumentation, and advanced electronics experimentation.
Features
14-bit ADC and DAC resolution
125 MS/s sampling rate
±20 V input range
Up to 60 MHz bandwidth
Xilinx Zynq-7010 SoC (FPGA + ARM processor)
512 MB RAM
Low-noise analog front- and back-ends
Applications
RF development and testing
Radar and wireless systems
Software-defined radio (SDR)
Photonics and optical research
Industrial automation and control systems
Signal analysis and instrumentation
Rapid prototyping of electronic measurement systems
Specifications
Processor
Dual-core ARM Cortex-A9
FPGA
AMD Xilinx Zynq-7010 SoC
RAM
512 MB (4 Gb)
Storage
microSD card (up to 32 GB)
Operating System
Linux-based Red Pitaya OS
ADC Resolution
14-bit
DAC Resolution
14-bit
Bandwidth
60 MHz (DC)
Sampling Rate
125 MS/s
Analog Input Channels
2
Analog Output Channels
2
Input Voltage Range
±1 V (LV) / ±20 V (HV)
Input Impedance
1 MΩ / 10 pF
Output Voltage Range
±1 V
Ethernet
1x Gigabit Ethernet (RJ45)
USB
2x USB-C 2.0 (for power and console)
Digital I/O
16x GPIO (3.3 V)
Communication Interfaces
I²C, SPI, UART, CAN
Power Supply
5 V/3 A via USB-C
Dimensions
106.8 x 60.0 x 17.9 mm
Included
1x Red Pitaya STEMlab 125-14 PRO Gen 2 board
2x 100 MHz oscilloscope probes
2x SMA-to-BNC adapters
1x microSD card with preinstalled OS
1x USB-C Power supply
1x Ethernet cable
Downloads
Documentation
Schematics
Book: Experimenting with Red Pitaya STEMlab Gen 2
With this new book, Red Pitaya goes beyond a versatile board. It becomes a powerful laboratory instrument for precision measurement, analysis, and control.
From the fundamentals of electronic project development, monitoring, control, and design to testing, this book walks you step-by-step through everything you need to know to harness the full potential of Red Pitaya hardware and software.
The book presents real-time, FPGA-based projects that are developed on a PC using the Vivado environment, then transferred to the Red Pitaya for execution and testing.
You will learn about enhanced performance, expanded I/O capabilities, improved FPGA features, and advanced connectivity options that open up new frontiers for precision measurement, monitoring, and control in your embedded applications.
Inside the book you will discover:
A deep dive into Red Pitaya architecture and hardware design
Electronic experiments using Red Pitaya for measurement and monitoring
Hands-on projects using the Python programming language
Practical guidance for FPGA programming using Red Pitaya
Red Pitaya FPGA projects using the Verilog HDL under Vivado IDE
Practical design of electronic projects including measurement and testing
Step-by-step examples that bridge theory and real-world implementation
Whether you are designing your own electronic circuits, developing signal analysis tools, or creating real-time control or monitoring systems, this book provides you the knowledge and confidence you need to fully learn and customize the Red Pitaya platform.
The OWON SDS1102 is an affordable benchtop digital oscilloscope that combines solid performance with essential measurement features. This 2-channel oscilloscope offers a 100 MHz bandwidth, a 1 GS/s sampling rate, a 7-inch LCD display, and a 10 kpts memory depth, making it a practical choice for everyday electronics testing, troubleshooting, and education.
The SDS1102 features a simplified trigger system with level and edge triggering, making it easy to capture and analyze common signals. It is designed for applications that do not require deep memory or advanced trigger functions, offering a straightforward and cost-effective solution for basic signal analysis.
Features
Bandwidth: 100 MHz
2 channels
Sample rate: 1 GS/s
Ultra-thin body
7-inch high-res LCD
SCPI and LabVIEW supported
Specifications
Bandwidth
100 MHz
Horizontal Scale (s/div)
5 ns/div – 1000 s/div
Channel
2
Vertical Sensitivity
5 mV/div – 5 V/div (at input)
DC Gain Accuracy
3%
Vertical Resolution (A/D)
8 bits (2 channels simultaneously)
Input
Input Impedance
1 MΩ, 10 pF
Input Coupling
AC, DC, GND
Max Input Voltage
±400 V, CATI, CATII
Passive probes
х1; х10
Probe Attenuation Factor
х1; х10; х100; х1000
Trigger System
Trigger Mode
Auto, Normal, Single
Trigger Type
Edge, Video
Edge Trigger Source
CH1, CH2
Video Trigger
Sampling Type
Real-time
Sample Rate
1 GS/s
Equivalent Sample Rate
No
Wavelength
10K pts
Interpolation
sin(x)/x
Measurement and Mathematical Treatment System
Automatic Measurement
Vpp, Vavg, RMS, Frequency, Period, Vmax, Vmin, Vtop, Vbase, Width, Overshoot, Pre-shootRise time, Fall time, +Width, -Width, +Duty, -Duty, Delay A→B, Delay A→B, area, cycle area
Math Functions
Addition, Subtraction, Multiplication, Division, FFT
General Characteristics
Display type
7" color LCD
Display Resolution
800 x 480
Power
100-240 V, 45-440 Hz, <15 W
Dimensions
301 x 70 x 152 mm
Weight
1.1 kg
Included
1x OWON SDS1102 Oscilloscope
2x Oscilloscope probes
1x Probe adjust
1x Mains power cord
1x USB cable
1x CD-Rom
1x Quick guide
Downloads
Quick Guide
Manual
PC Software
SCPI Commands
The DCA75 Pro is a great instrument that combines ease-of-use with amazing features. It can automatically identify a huge range of semiconductors, automatically identify pinouts and measure detailed parameters.
Features
Built-in graphics display (now backlit) to show detailed schematic of the component you're testing as well as pinout and measurement data
USB connectivity to allow curve tracing, data storage/retrieval and device matching on your Windows PC (Windows 7 and higher)
Single internal AAA alkaline cell for standalone operation
Component Support
Bipolar transistors (NPN/PNP inc Silicon/Germanium)
Darlington transistors (NPN/PNP)
Enhancement mode MOSFETs (N-Ch and P-Ch)
Depletion mode MOSFETs (N-Ch and P-Ch)
Junction FETs (N-Ch and P-Ch). Both symmetrical and asymmetrical types
Enhancement IGBTs (N-Ch and P-Ch)
Diodes and diode networks (2 and 3 lead types)
Zener diodes (up to about 9 V)
Voltage regulators (up to about 8 V)
LEDs and bi-colour LEDs (2 lead and 3 lead types)
Low power sensitive Triacs and Thyristors (<10 mA trigger and hold)
Measurements
BJT current gain (hFE)
BJT base emitter voltage (Vbe)
BJT collector leakage current
MOSFET on and off gate threshold voltages
MOSFET transconductance
JFET pinch-off voltage
JFET transconductance
JFET IDSS (drain current for Vgs=0)
IGBT on and off gate threshold voltages
IGBT transconductance
Voltage regulator output voltage
Voltage regulator quiescent current consumption
Voltage regulator drop-out voltage
Zener voltage
Diode forward voltage drop
Specifications
Analyzer type
Semiconductor components
Component detection
Automatic
Pinout detection
Automatic, connect any way round
Display type
Graphic LCD (now backlit)
Interface type
USB for optional PC connection
PC functions
Curve tracing (Windows 7 and higher)
Software
Included on USB drive for Windows 7 and higher
Battery
Single AAA cell (supplied)
Included
Peak Atlas DCA75 Pro
PC software on a USB Flash Drive for Windows 11, 10, 8, 7, XP
Micro USB cable
Fitted universal premium hook probes
AAA Alkaline battery
Downloads
Datasheet (EN)
User Guide (EN)
User Guide (IT)
Software Installation Guide (EN)
Software and Firmware Package
The Elektor Audio DSP FX Processor combines an ESP32 microcontroller and an ADAU1701 Audio DSP from Analog Devices. Besides a user-programmable DSP core, the ADAU1701 has high-quality analog-to-digital and digital-to-analog converters built-in and features an I²S port. This makes it suitable as a high-quality audio interface for the ESP32.
Programs for the ESP32 can be created with Arduino, Platform IO, CMake or by using the Espressif IDF in another way. Programs for the ADAU7101 audio DSPs are created with the free visual programming tool SigmaStudio by dragging and dropping pre-defined algorithm blocks on a canvas.
Applications
Bluetooth/Wi-Fi audio sink (e.g. loudspeaker) & source
Guitar effect pedal (stomp box)
Music synthesizer
Sound/function generator
Programmable cross-over filter for loudspeakers
Advanced audio effects processor (reverb, chorus, pitch shifting, etc.)
Internet-connected audio device
DSP experimentation platform
Wireless MIDI
MIDI to CV converter
and many more...
Specifications
ADAU1701 28-/56-bit, 50-MIPS digital audio processor supporting sampling rates of up to 192 kHz
ESP32 32-bit dual-core microcontroller with Wi-Fi 802.11b/g/n and Bluetooth 4.2 BR/EDR and BLE
2x 24-bit audio inputs (2 V RMS, 20 kΩ)
4x 24-bit audio outputs (0.9 V RMS, 600 Ω)
4x Control potentiometer
MIDI in- and output
I²C expansion port
Multi-mode operation
Power supply: 5 V DC USB or 7.5-12 V DC (barrel jack, center pin is GND)
Current consumption (average): 200 mA
Included
1x ESP32 Audio DSP FX Processor board (assembled)
1x ESP32-PICO-KIT
2x Jumpers
2x 18-pin headers (female)
4x 10 KB potentiometers
Downloads
Documentation
GitHub
The Elektor Super Servo Tester can control servos and measure servo signals. It can test up to four servo channels at the same time.
The Super Servo Tester comes as a kit. All the parts required to assemble the Super Servo Tester are included in the kit. Assembling the kit requires basic soldering skills. The microcontroller is already programmed.
The Super Servo Tester features two operating modes: Control/Manual and Measure/Inputs.
In Control/Manual mode the Super Servo Tester generates control signals on its outputs for up to four servos or for the flight controller or ESC. The signals are controlled by the four potentiometers.
In Measure/Inputs the Super Servo Tester measures the servo signals connected to its inputs. These signals may come from for instance an ESC, a flight controller, or the receiver or another device. The signals are also routed to the outputs to control the servos or the flight controller or ESC. The results are shown on the display.
Specifications
Operating modes
Control/Manual & Measure/Inputs
Channels
3
Servo signal inputs
4
Servo signal outputs
4
Alarm
Buzzer & LED
Display
0.96' OLED (128 x 32 pixels)
Input voltage on K5
7-12 VDC
Input voltage on K1
5-7.5 VDC
Input current
30 mA (9 VDC on K5, nothing connected to K1 and K2)
Dimensions
113 x 66 x 25 mm
Weight
60 g
Included
Resistors (0.25 W)
R1, R3
1 kΩ, 5%
R2, R4, R5, R6, R7, R9, R10
10 kΩ, 5%
R8
22 Ω, 5%
P1, P2, P3, P4
10 kΩ, lin/B, vertical potentiometer
Capacitors
C1
100 µF 16 V
C2
10 µF 25 V
C3, C4, C7
100 nF
C5, C6
22 pF
Semiconductors
D1
1N5817
D2
LM385Z-2.5
D3
BZX79-C5V1
IC1
7805
IC2
ATmega328P-PU, programmed
LED1
LED, 3 mm, red
T1
2N7000
Miscellaneous
BUZ1
Piezo buzzer with oscillator
K1, K2
2-row, 12-way pinheader, 90°
K5
Barrel jack
K4
1-row, 4-way pin socket
K3
2-row, 6-way boxed pinheader
S1
Slide switch DPDT
S2
Slide switch SPDT
X1
Crystal, 16 MHz
28-way DIP socket for IC2
Elektor PCB
OLED display, 0.96', 128 x 32 pixels, 4-pin I²C interface
Links
Elektor Magazine
Elektor Labs
Siglent's SDS2000X Plus series Digital Storage Oscilloscopes are available in bandwidths of 100 MHz, 200 MHz, and 350 MHz, have a maximum sample rate of 2 GSa/s, a maximum record length of 200 Mpts/ch, and up to 4 analog channels + 16 digital channels mixed-signal analysis ability.
The SDS2000X Plus series employs Siglent’s SPO technology with a maximum waveform capture rate of up to 120,000 wfm/s (normal mode, up to 500,000 wfm/s in Sequence mode), 256-level intensity grading display function plus a color temperature display mode. It also employs an innovative digital trigger system with high sensitivity and low jitter. The trigger system supports multiple powerful triggering modes including serial bus triggering. History waveform recording, Sequence acquisition, Search and Navigate functions allow for extended waveform records to be captured, stored, and analyzed. An impressive array of measurement and math capabilities, options for a 50 MHz waveform generator, as well as serial decoding, mask test, bode plot, and power analysis are also features of the SDS2000X Plus. A 10-bit acquisition mode helps to satisfy applications that require more than 8-bit resolution.
The large 10.1’’ capacitive touch screen supports multi-touch gestures, while the remote web control, mouse and external keyboard support greatly improve the operating efficiency of the SDS2000X Plus.
Features
100 MHz, 200 MHz, 350 MHz (upgradable to 500 MHz) models
Real-time sampling rate up to 2 GSa/s
Record length up to 200 Mpts
Serial bus triggering and decoder, supports I²C, SPI, UART, CAN, LIN, CAN FD, FlexRay, I²S and MIL-STD-1553B
Provide 10 bit mode, Vertical and Horizontal Zoom
Capacitive touch screen supports multi-touch gestures
Siglent SDS2000X Plus Oscilloscopes
SDS2102X Plus
SDS2104X Plus
SDS2204X Plus
SDS2354X Plus
Bandwidth
100 MHz
100 MHz
200 MHz
350 MHz
Channels
2
4
4
4
Real-time sampling rate
2 GSa/s
2 GSa/s
2 GSa/s
2 GSa/s
Capture rate
120,000 wfm/s
120,000 wfm/s
120,000 wfm/s
120,000 wfm/s
Memory depth
200 Mpts/ch
200 Mpts/ch
200 Mpts/ch
200 Mpts/ch
Included
Siglent SDS2102X Plus Oscilloscope
Passive probes
Power cord
USB cable
Manual
Downloads
Datasheet
Manual
Quick guide
Manual
Firmware
The Seeed Studio RF Explorer 3G Combo is a handheld digital spectrum analyzer and an affordable tool for working across a wide range of popular frequency bands. It is based on a highly integrated frequency synthesizer and a double-balanced mixer, providing high performance, compact dimensions, low power consumption, and excellent value.
Designed for both indoor and outdoor use, the RF Explorer 3G Combo can also be connected to a PC via a standard Mini-USB 2.0 connector for additional functionality.
This model combines a WSUB1G base unit with an RFEMWSUB3G expansion module, supplied fully assembled and tested. It features two SMA connectors and includes two antennas: a dual-band 144/430 MHz telescopic antenna for sub-GHz frequencies and a helical whip antenna for the 2.4 GHz band. Additional frequency-specific antennas may be required for optimal performance in certain supported frequency ranges.
This combination provides the wide frequency coverage of the WSUB3G module together with the high sensitivity and fast response of the WSUB1G unit in the commonly used sub-1 GHz frequency range.
Features
Pocket size and light weight
Solid aluminum metal case
Includes a transport EVA carry case for RF Explorer
Spectrum Analyzer mode with Peak Max and Hold, Normal, Overwrite and Averaging modes
Lifetime free firmware upgrades available, open to community requested features
High capacity Lipo for 16+ hours of continuous run, rechargeable by USB
Windows PC client Open Source
Can be extended with internal Expansion Modules for additional band and functionality
Wide band coverage to all popular RF frequencies, starting at 15 MHz and going up to 2.7 GHz. This includes very interesting frequency areas such as 2 m HAM radio, all VHF and UHF, FM radio, GPS, WiFi and WiMax, Bluetooth, etc.
Firmware: RF Explorer 3G Combo is delivered with upgraded firmware v1.09. Note some of the features and operation accuracy will be improved in upcoming free firmware revisions.
Specifications
Battery
Lithium Cells / Batteries contained in equipment UN3481 - PI967
Frequency band
15-2700 MHz
Frequency span
112 KHz - 600 MHz
Graphics LCD
128 x 64 pixels, great visibility outdoors
PC Windows client
Supports Windows (32 and 64 bits)
Backlight
For great indoor visibility
2 standard SMA 50 ohms connector,
One for Sub-GHz wideband Nagoya NA-773 telescopic antenna included and another 2.4 GHz one for 15-2700 MHz band with helical antenna included.
Amplitude resolution
0.5 dBm
Dynamic range
Left SMA port (WSUB1G)
-115 dBm to 0 dBm
Right SMA port (WSUB3G)
-110 dBm to -10 dBm
Absolute Max input power
Left SMA port (WSUB1G)
+5 dBm
Right SMA port (WSUB3G)
+30 dBm
Average noise level (typical)
-110 dBm
Frequency stability and accuracy (typical)
±10 ppm
Amplitude stability and accuracy (typical)
±6 dBm
Frequency resolution
1 KHz
Resolution bandwidth (RBW)
Automatic 3 KHz to 600 KHz
Weight
185 g
Dimensions
113 x 70 x 25 mm
Included
Seeed Studio RF Explorer 3G Combo Spectrum Analyzer
Nagoya NA-773 wideband telescopic antenna
2.4 GHz band antenna
EVA Case
Documentation
For more info and to get started with your RF Explorer, visit the start page.
For questions and support, please visit https://support.rf-explorer.com
The FNIRSI SG-003A multi-functional Signal Generator a.k.a. Process Meter/Calibrator is a high-precision voltage/current generator and meter. The SG-003A provides highly accurate reference voltages or currents for testing and calibrating other measurement instruments like multimeters and oscilloscopes.
Besides voltages and currents, the SG-003A also generates rectangular pulse signals with precisely programmable frequencies and duty cycles. Its converter mode turns the SG-003A into a precision voltage-controlled current source, or current-controlled voltage source, and even a voltage- or current-controlled frequency generator.
The SG-003A is a great tool for checking your multimeter’s accuracy and precision, and for testing e.g. LEDs.
Features
Accuracy (voltage/current)
0.1% ±0.005
Resolution (current)
0.01 mA
Frequency
0-10 kHz
Resolution
5 digits
Output power
24 V
Display
2.4" TFT LCD (320 x 240)
Dimensions
92 x 72 x 30 mm
Weight
165 g
Specifications
Signal
Range
Precision
Resolution
Max load
External power supply
Active current output
0~24 mA
±(0.1% + 0.005)
0.01 mA
750 Ω
Passive current output (XMT)
0~24 mA
±(0.1% + 0.005)
0.01 mA
0~30 V
Voltage output
0~24 V
±(0.1% + 0.005)
0.01 V
24 V loop
0~24 mA
±(0.1% + 0.005)
0.01 mA
Frequency output
0~9999 Hz
±2%
5 digits
Current input
0~24 mA
±(0.1% + 0.005)
0.01 mA
Voltage input
0~30 V
±(0.1% + 0.005)
0.01 V
Included
1x FNIRSI SG-003A Signal generator
4x Test clips
1x USB charger
1x USB-C cable
1x Manual
Downloads
Manual
Firmware V4.3
Over 40 Fully Tested ESP32 Projects Using Arduino IDE and the LVGL Graphics Library
This bundle includes the ESP32 Cheap Yellow Display (CYD) – a compact development board combining a standard ESP32 microcontroller with a 320x240 pixel TFT color display. The board also features multiple connectors for GPIO, serial communication (TX/RX), power, and ground. The built-in display is a major advantage, allowing users to create complex, graphics-based projects without the need for external LCDs or displays.
The accompanying book introduces the CYD board's hardware and on-board connectors in detail. It provides a range of beginner to intermediate-level projects developed using the popular Arduino IDE 2.0. Both basic graphics functions and the powerful LVGL graphics library are covered, with practical projects illustrating each approach.
All included projects have been fully tested and are ready to use. The book provides block diagrams, circuit schematics, complete code listings, and step-by-step explanations. With the LVGL library, readers can create modern, full-color graphical interfaces using widgets such as buttons, labels, sliders, calendars, keyboards, charts, tables, menus, animations, and more.
ESP32 Cheap Yellow Display Board
This development board (also known as "Cheap Yellow Display") is powered by the ESP-WROOM-32, a dual-core MCU with integrated Wi-Fi and Bluetooth capabilities. It operates at a main frequency of up to 240 MHz, with 520 KB SRAM, 448 KBROM, and a 4 MB Flash memory. The board features a 2.8-inch display with a resolution of 240x320 and resistive touch.
Furthermore, the board includes a backlight control circuit, touch control circuit, speaker drive circuit, photosensitive circuit, and RGB-LED control circuit. It also provides a TF card slot, serial interface, DHT11 temperature and humidity sensor interface, and additional IO ports.
The module supports development in Arduino IDE, ESP-IDE, MicroPython, and Mixly.
Applications
Image transmission for Smart Home device
Wireless monitoring
Smart agriculture
QR wireless recognition
Wireless positioning system signal
And other IoT applications
Specifications
Microcontroller
ESP-WROOM-32 (Dual-core MCU with integrated Wi-Fi and Bluetooth)
Frequency
Up to 240 MHz (computing power is up to 600 DMIPS)
SRAM
520 KB
ROM
448 KB
Flash
4 MB
Operating voltage
5 V
Power consumption
approx. 115 mA
Display
2.8-inch color TFT screen (240 x 320)
Touch
Resistive Touch
Driver chip
ILI9341
Dimensions
50 x 86 mm
Weight
50 g
Downloads
GitHub
This bundle contains:
The ESP32 Cheap Yellow Display Book (normal price: €35)
ESP32 Cheap Yellow Display Board (normal price: €25)
1x ESP32 Dev Board with 2.8" Display and acrylic Shell
1x Touch pen
1x Connector cable
1x USB cable