De LoRa-E5 Development Kit is een gemakkelijk te gebruiken compacte ontwikkel-toolset waarmee je de krachtige eigenschappen van de LoRa-E5 STM32WLE5JC kunt ontdekken. Het bestaat uit een LoRa-E5 Dev Board, een antenne (EU868), een USB type C kabel, en een 2-AA 3 V batterijhouder.Het LoRa-E5 Dev Board is uitgerust met de LoRa-E5 STM32WLE5JC module, die de eerste combinatie is van LoRa RF en MCU chip in een kleine enkelvoudige chip, en is FCC en CE gecertificeerd. Hij is voorzien van een ARM Cortex-M4 kern en Semtech SX126X LoRa chip, ondersteunt zowel LoRaWAN als LoRa protocol op de wereldwijde frequentie en (G)FSK, BPSK, (G)MSK, en LoRa modulaties.
Het LoRa-E5 ontwikkelingsboard heeft een zeer groot zendbereik, een extreem laag stroomverbruik en gebruiksvriendelijke interfaces.
Het LoRa-E5 Dev Board heeft een long range zendbereik van LoRa-E5 tot 10 km in een open gebied. Het stroomverbruik van de on-board LoRa-E5 modules in sleep mode is slechts 2.1 µA (WOR mode). Hij is ontworpen volgens industriële normen met een brede werktemperatuur van -40? ~ 85?, hoge gevoeligheid tussen -116.5 dBm ~ -136 dBm, en uitgangsvermogen tot +20.8 dBm bij 3.3 V.
Het LoRa-E5 Dev board heeft ook veel interfaces. Om de volledige functionaliteit van de LoRa-E5 module te kunnen gebruiken heeft het LoRa-E5 Dev Board alle 28 pinnen van LoRa-E5 bedraad en voorziet het van vele interfaces waaronder Grove connectoren, RS-485 terminal, male/female pin headers waarmee je sensoren en modules met verschillende connectoren en gegevensprotocollen kunt aansluiten, zodat je tijd bespaart bij het solderen van draden. Je kunt het board ook gemakkelijk van stroom voorzien door de batterijhouder aan te sluiten met 2-AA batterijen, zodat je het tijdelijk kunt gebruiken zonder externe stroombron. Het is een gebruiksvriendelijke printplaat om gemakkelijk te testen en snel prototypes te maken.
Specificaties
Afmetingen
LoRa-E5 Dev Board: 85.6 x 54 mm
Voedingsspanning
3-5 V (Battery) / 5 V (USB-C)
Uitgangsstroom
EN 3V3 / 5 V
Uitgangsvermogen
Tot +20.8 dBm bij 3.3 V
Frequentie
EU868
Protocol
LoRaWAN
Gevoeligheid
-116.5 dBm ~ -136 dBm
Interfaces
USB Type C / JST2.0 / 3x Grove (2x I²C/1x UART) / RS485 / SMA-K / IPEX
Modulatie
LoRa, (G)FSK, (G)MSK, BPSK
Werktemperatuur
-40? ~ 85?
Stroomverbruik
LoRa-E5 module sleep current slechts 2.1 uA (WOR mode)
Inbegrepen
1x LoRa-E5 Dev Board
1x Antenne (EU868)
1x USB Type C kabel (20 cm)
1x 2-AA 3 V Batterijhouder
This is a high-performance cooling solution designed to effectively dissipate heat and ensure optimal operating temperatures for the Raspberry Pi. It is an essential accessory for users who want to enhance the performance and longevity of their Raspberry Pi device.
The compact design of the Water cooling kit for Raspberry Pi 5 allows it to be seamlessly installed on the top and bottom of the Raspberry Pi 5, ensuring efficient heat transfer and perfectly protecting the bottom of the Raspberry Pi. Its simple installation process eliminates the need for complex wiring or additional tools, making it friendly to both beginners and experienced Raspberry Pi enthusiasts.
With its powerful cooling performance, the water cooling kit for Raspberry Pi 5 for effectively dissipates heat generated by the Raspberry Pi during intensive tasks or prolonged usage. This helps prevent overheating and ensures stable performance. Efficient water-cooled cooling will allow you to connect multiple Raspberry Pi boards to a set of cooling devices. When using Raspberry Pi in a cluster, you can use a set of water-cooled devices to effectively cool multiple Raspberry Pi boards.
Features
Made for Raspberry Pi: Specially designed for Raspberry Pi 5, 1:1 mold opening, covering all heat sources, including CPU, Wi-Fi, power chip, and eMMC.
Cooling Performance: Effectively dissipates the heat generated by the Raspberry Pi, ensuring optimal operating temperatures and preventing overheating.
Easy to Use: The integrated design of the water pump and cooling fan is convenient for users to install.
RGB Color Lighting: RGB-colored lights are installed at the fan and water pump locations.
Included
1x Water cooling kit
1x Water cooling radiator
1x Black heatsink
2x Silicone hose
1x 12 V/2 A power adapter (US)
4x Hexagonal screw M2.5x10
1x L-key hex wrench
You can use RF Explorer 3G Combo equally well outdoor and indoor, and you can also connect it to a PC for extra functionality using standard mini-USB 2.0 connector.
This model includes a WSUB1G baseline unit plus an RFEMWSUB3G Expansion Module conveniently assembled and tested. It comes with two SMA connectors and two antennas,a dual band telescopic 144 / 430 MHz antenna for all Sub-GHz frequencies and a whip helical antenna for 2.4 GHz band. Additional, specific band antennas may be needed to cover efficiently some of the frequencies supported.
The combination of these two models offer the wide band coverage of the WSUB3G module, together with the highest sensitivity and quick response of the WSUB1G model for the popular sub-1GHz frequencies.
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 XP/Vista/Win7 both 32 and 64bits
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
Size
113 x 70 x 25 mm
Included
RF Explorer 3G Combo
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
Features
Internal LNA amplifier and selectable attenuator
Low frequency support from 50KHz covering LF, MF, HF, VHF and UHF up to 960Mhz
New HELP and SET buttons to improve user interface and configuration selection with 2-clicks
Wide band coverage to all popular sub-1Ghz bands, including FM, TV and DTV, ISM, RFID, GSM, etc.
Ideal choice for HAM bands from 160meters to 33cm
Pocket size and light weight
Solid metal case
Spectrum Analyzer mode with Peak Max and Hold, Normal, Overwrite and Averaging modes
High capacity internal Lithium battery for 20hs+ of continuous run, rechargeable by USB
Multi-platform Windows/Linux/MacOS Open Source software and API libraries
Can be extended with internal Expansion Modules for additional band and functionality
Specifications
Frequency band: 0.05 MHz - 960 MHz
Frequency span: 0.1 MHz - 960 MHz
Internal selectable LNA 25 dB gain
Internal selectable Attenuator 30 dB
Graphics LCD 128 x 64 pixels, great visibility outdoors
Support included for Windows, Linux and MacOS X
Backlight for great visibility indoor
Internal Lithium Ion 1800mA/h rechargeable battery
Standard SMA 50 Ω connector
Wideband 144/433MHz dual band telescopic antenna included
UHF 400-900 MHz rubber duck articulated antenna included
Amplitude resolution: 0.5dBm
Dynamic range: -125 dBm to 10 dBm
Absolute Max input power: +30dBm
Average noise level (typical LNA): -125 dBm
Frequency stability and accuracy (typical): +-10 ppm
Amplitude stability and accuracy (typical): +-2d Bm
Frequency resolution: 1kHz
Resolution bandwidth (RBW): automatic 2.6 kHz to 600 kHz
Included
1x RF Explorer WSUB1G+ Spectrum Analyzer
1x Mini USB cable
1x Dual band 144/430MHz Telescopic antenna
1x UHF 400-900Mhz antenna
1x EVA case
Contents Basic principles A connector is an electromechanical system that provides a separable connection between two subsystems of an electronic device without an unacceptable effect on the performance of the device. It will be shown that there are a lot of complex parameters to handle properly to make this statement true. Design / Selection / Assembly This chapter provides an overview of design and material requirements for contact finishes, contact springs and connector housings as well as the major degradation mechanisms for these connector components. To complete this chapter, material selection criteria for each will also be reviewed. Additionally the Level of Interconnection (LOI) was integrated into this chapter as it addresses, where the connector is used within an electronic system and therefore influences the requirements and durability of the connector depending on its use. Applications This chapter is heading to the practical work and shows how customers use connectors in their applications to offer some possibilities and to ease your daily work. Additionally it contains some special topics like tin-whisker or impedance of ZIF cable to offer you extended background knowledge.
The newcomer to Microchip’s PIC microcontrollers invariably gets an LED to flash as their first attempt to master this technology. You can use just a simple LED indicator in order to show that your initial attempt is working, which will give you confidence to move forward. This is how the book begins — simple programs to flash LEDs, and eventually by stages to use other display indicators such as the 7-segment display, alphanumeric liquid crystal displays and eventually a colour graphic LCD.
As the reader progresses through the book, bigger and upgraded PIC chips are introduced, with full circuit diagrams and source code, both in assembler and C.
In addition, a small tutorial is included using the MPLAB programming environment, together with the EAGLE schematic and PCB design package to enable readers to create their own designs using the book’s many case studies as working examples to work from.
Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5 mm-pitch “mini” FPC format as the Compute Module Development Kit, and require adapter cables to connect to the 15-way, 1 mm-pitch “standard” format connectors on current Raspbery Pi camera and display products.These mini-to-standard adapter cables for cameras and displays (note that a camera cable should not be used with a display, and vice versa) are available in 200 mm, 300 mm and 500 mm lengths.
Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5 mm-pitch “mini” FPC format as the Compute Module Development Kit, and require adapter cables to connect to the 15-way, 1 mm-pitch “standard” format connectors on current Raspbery Pi camera and display products.These mini-to-standard adapter cables for cameras and displays (note that a camera cable should not be used with a display, and vice versa) are available in 200 mm, 300 mm and 500 mm lengths.
Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5 mm-pitch “mini” FPC format as the Compute Module Development Kit, and require adapter cables to connect to the 15-way, 1 mm-pitch “standard” format connectors on current Raspbery Pi camera and display products.These mini-to-standard adapter cables for cameras and displays (note that a camera cable should not be used with a display, and vice versa) are available in 200 mm, 300 mm and 500 mm lengths.
Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5 mm-pitch “mini” FPC format as the Compute Module Development Kit, and require adapter cables to connect to the 15-way, 1 mm-pitch “standard” format connectors on current Raspbery Pi camera and display products.These mini-to-standard adapter cables for cameras and displays (note that a camera cable should not be used with a display, and vice versa) are available in 200 mm, 300 mm and 500 mm lengths.
,
van Mathias Claussen
Review: 2-in-1 SMD Hetelucht Rework Station (ZD-8922)
Een voordelig 2-in-1 SMD hetelucht soldeerstation. De ZD-8922 is een van de gereedschappen voor minder dan 100€ die een soldeerbout en hete lucht biedt. Naast...
,
van Clemens Valens
FNIRSI DPOX180H 2-in-1 digitale fosforoscilloscoop (review)
De Fnirsi DPOX180H 2-kanaals handheld 180 MHz digitale sampling oscilloscoop past in de zak van je jas, weegt 285 gram en is verkrijgbaar voor minder...