Received an iPhone 6 from a user, reporting a fault of not powering on. Upon disassembly and power testing, it showed a high current draw, and the phone could display the white Apple logo. Since there was a high current, some area would heat up. After disassembling and inspecting the motherboard, it was found that … Read more
1. Layout Specifications for the WiFi Module Circuit: The layout of the WiFi module should be kept away from the main control CPU and DDRAM and other high-speed digital devices to avoid mutual interference of high-frequency digital signals; The layout area of the WiFi module should include the bottom layer, avoiding the placement of other … Read more
Introduction to Marvell WiFi Module Single WiFi + MCU Module Chip: Marvell 8786 Chip: Supports IEEE802.11b/g/n; Supports SDIO2.0, USB2.0 interfaces; Ultra-small size: 4.87mm * 7.67mm * 0.4mm; ROHS certified; Supports 2.4G single band; Bandwidth: 20T/40T; Rate: 150Mbit/s 1T1R; Integrated Marvell Feroceon@CPU 128 MHz CPU clock speed Supports UART and GPIO Provides Android drivers, application platforms … Read more
IT6334 (2.4G+5G+BT4.0), Chip Used: Broadcom BCM4334 Replaces the following products: AP6212 (2.4G+BT4.0), Chip Used: BCM43438 AP6330 (2.4G+5G+BT4.0), Chip Used: BCM4330XKUBG IT6335 (2.4G+5G ac+BT4.00), Chip Used: Broadcom BCM4335 Replaces the following products: AP6255 AP6335 IT6339 (2.4G+5G ac PA+BT4.0), Chip Used: Broadcom BCM4339 Replaces the following products: AP6255 AP6335 IT6356 (2T2R+BT4.1), Chip Used: Broadcom BCM4356 Replaces the … Read more
AuthorGuilin Zhong: (WeChat ID: great_baskerball) Editor of Smart Product Circle In 2015, the monthly shipment of WiFi chips used in the Internet of Things (IoT) reached 3-4 million units, and it is expected to surpass 100 million units in 2016. What are the reasons behind this surge? How has it evolved? With the continuous stimulation … Read more
Forum Weekly 21 Jan 2022 This week’s highlights: 1. Microcontroller + WiFi Module and Siemens S7-200 Smart for Modbus TCP Ethernet Communication 2. Self-drawn – 24V regulated positive and negative 12V switching power supply schematic! 3. Self-written Tetris, Botu V16 4. How to make the servo motor rotate freely while powered on? 5. S7 200 … Read more
AW-AM691NF WiFi Module Overview WiFi/BT 2-in-1 Module: This module supports dual-band 2.4G + 5G, and is compatible with 802.11a/b/g/n; it also supports Bluetooth 4.0; featuring a 2T2R dual antenna setup. Advantages include: 1. Fast Speed: Supports IEEE802.11a/b/g/n; Bluetooth 4.0 supported; 2. Strong Signal: Supports 5G WIFI, minimal interference, high speed, avoiding conflicts with Bluetooth, Zigbee, … Read more
IT6356 WiFi Module Introduction WiFi/BT/FM 3-in-1 Module: This module supports dual-band 2.4G + 5G, 802.11a/b/g/n/AC, and Bluetooth 4.0; 2T2R dual antennas. It has the following advantages: 1. Fast Speed: Supports the latest WiFi standards, 802.11a/b/g/n/AC; supports Bluetooth 4.0; 2. Good Signal: Supports 5G WiFi, less interference, fast speed, avoiding interference and competition from Bluetooth, Zigbee, … Read more
The tools and techniques introduced in this article have a certain level of aggressiveness. Please use them responsibly and legally. Do you want to have your own mobile wireless penetration testing box? If you are interested, the devices introduced below will be very helpful. This box is called the “MiTM (Man-in-the-Middle) WiFi Box”. Using this … Read more
Author: Zhao Xiaofei IoT Think Tank Original Reprint must indicate the source and origin —— [Introduction] —— The “complementarity” of NB-IoT/eMTC/LoRa and local area networks is reflected in the vertical expansion of existing solutions, more choices in complex scenarios, and the new capability for product lifecycle management, which may lead to new production and operation … Read more