lilgo T-32C3 -小型ESP32-C3 WiFi & BLE物联网模块,4MB flash

LILYGO-TTGO-T-32C3

我们慢慢开始看到越来越多的硬件基于ESP32-C3 RISC-V处理器,lilgo T-32C3是一个基于WiFi和蓝牙LE处理器的紧凑模块,包含4MB flash和PCB天线。我预计T-32C3最终会出现在该公司的智能手表和开发板中,并加入了AI思考者的其他ESP32-C3模块。lilgo T-32C3模块规格:SoC - Espressif ESP32-C3 RISC-V处理器@ 160 MHz和400 KB的SRAM, 384 KB的ROM, 8 KB RTC SRAM, 2.4 GHz无线,蓝牙5.0 LE &网格存储- 4 mb的闪存车载PCB天线I / Os x - 22与GPIO槽形孔,3 x ADC, SPI、UART、I2C、引导、重置、5 v, 3.3 v,GND尺寸- 23 × 11 × 3.5 mm(4层PCB)注意USB接口没有在规格中列出,但USB DN和DP信号位于GPIO18和GPIO19,所以USB也应该[…]

M5Stamp Pico ESP32-PICO-D4模块发货时采用耐热塑料外壳

M5Stamp皮科

大多数WiFi物联网模块被设计成通过外壳集成到产品中,但基于ESP32-PICO-D4 SiP的M5Stamp Pico模块带有可拆卸的耐高温塑料外壳,可以保护3D天线和组件,同时为焊接头和/或Grove连接器留出空间。与其他基于esp32的M5Stack硬件一样,M5Stamp Pico采用UIFlow图形编程平台进行编程,并与Arduino、MicroPython和ESP-IDF兼容。M5Stamp Pico规格:System-in-Package - Espressif系统ESP32-PICO-D4 SiP与双核处理器@ 240 mhz、520 kb SRAM, 4 mb flash,和2.4 GHz无线4 150 Mbps,蓝牙4.2 BR / LE连接天线- 2.4 GHz的3 d天线I / Os 2.54 mm间距头与ADC、DAC,触摸传感器、SD / SDIO / MMC主机控制器,SPI, SDIO / SPI从属控制器,EMAC, PWM, UART,I2C, I2S, IR遥控器,高达12x GPIO,脉冲计数器[…]

基于esp32的BBC Micro:位克隆- Meet Mbits

BBC Micro:位克隆ESP32 Mbits

几年前,我们注意到BBC Micro:位克隆基于ESP32 WISOC与Banana PI的BPI:位板,阵列为25个RGB LED和WiFi和Bluetooth LE连接。现在是另一个这样的克隆,具有以一种类似于BBC Micro:Bit V2板的方式设计的Elecrow Mbits,但用ESP32双核无线芯片替换Nordic Semi NRF52833 2.4GHz / BLE SOC,支持WiFi和BLE。Elecrow Mbits和BBC Micro:位V2之间的规范足够接近,尽管ESP32是一个更强大的处理器,Mbits板具​​有更多内存和存储。BBC Micro:Bit V2的功耗应该更好,因此如果需要在电池上长时间运行,因此可能是一个更好的选择,或者您将需要更大的电池。GPIO引脚也看起来不同,所以并非所有micro:bit [...]

Qualcomm IPQ4019 802.11AC Wave 2 WiFi系统上的模块配有双千兆以太网底板

IPQ4019系统级模块

Wallys Communication介绍了其最低的成本网络平台与配备有两个千兆以太网端口的DR4019S板,以及Qualcomm IPQ4019 802.11ac Wive System-On模块。该模块配有32MB和Flash,以及256MB的DDR内存和目标应用,从安全监控到商业无线电覆盖到酒店无线应用,甚至森林消防工程。DR4019S板规格:SOC - Qualcomm IPQ4019四核ARM Cortex A7 AT 716.8 MHz系统内存 - 256MB DDR存储 - 32MB NOR闪存连接2X千兆以太网端口802.11b / g / n /交流波2 wifi 5带2x 5g mmcx连接器,2x 2.4G MMCX连接器(但我们只能看到所提供的照片中的一两张))USB - 1x USB 3./2.0端口MISC - 调试UART头部电源 - 12V通过直流插孔功耗 - 9.6W(最大值)尺寸 - 65 x 35 x 16mm温度[...]

回顾“4G LTE WiFi调制解调器”热点

4G LTE WiFi Modem评测

I’ve purchased a USB dongle acting as a WiFI & 4G cellular router with a generic name “4G LTE WiFi Modem” and listed as “4G LTE WiFi Hotspot Wireless Router USB Dongle 150Mbps Modem Stick Sim Card” on the online store (Lazada) I bought it from. 4G LTE WiFi Modem unboxing It’s a 3-in-1 device that works as a 4G USB dongle connected to a PC or laptop, a 4G USB WiFi cellular router/hotspot, and a USB flash drive when adding a MicroSD card. 4G performance is limited to 150Mbps DL, 50Mbps UL, while WiFi only supports up to 72 Mbps using 802.11n 2.4GHz WiFi. That’s perfectly fine for my use case, as the plan is to use it as a standalone WiFi hotspot with an unlimited 10 Mbps SIM card, and in locations with low population densities so 5GHz WiFi is not a must. The USB dongle ships with […]

Realtek AP-Router SDK漏洞可能影响数以百万计的路由器和物联网设备

Realtek SDK漏洞

物联网督察研究实验室已经发现了用于RTL819x的SoC可能影响无线路由器和加密锁的数以百万计的瑞昱AP-路由器“丛林” SDK四高和关键漏洞。攻击者可以利用网络攻击,例如无需对设备的物理访问,产生缓冲或堆栈溢出帮助他访问系统并执行自己的代码。瑞昱已经发布了补丁集咨询(PDF)为所有四个漏洞,所以你应该,如果你可以升级固件。这四个漏洞概要:CVE-2021-35392 - 瑞昱丛林SDK版本2.x版高达v3.4.14B提供了“无线网络简单配置”服务器调用WSCD或mini_upnpd同时实现UPnP和SSDP协议。该服务器是易受堆缓冲区溢出,其存在由于SSDP的不安全工艺加工NOTIFY从接收到的M-SEARCH消息ST报头的消息。CVE-2021-35393 - 也影响了“无线网络简单配置”服务器(WSCD [...]

$ 4 lolin s2 miniesp32-s2 wifi iot板与Wemos D1迷你屏蔽有用

loin S2 Mini板

If you liked Wemos D1 mini ESP8266 board with stackable add-on boards, you’ll probably love Wemos/Lolin S2 Mini board with the same factor, but fitted with an ESP32-S2 single-core WIFi processor, and offering twice the number of I/Os. The board comes with 4MB flash, 2MB PSRAM, a USB-C port for power and programming, as well as two 16 pin headers for GPIOs, ADC, DAC, and more. Lolin S2 Mini V1.0.0 specifications: SoC – Espressif Systems ESP32-S2FN4R2 Xtensa single-core 32-bit LX7 microprocessor up to 240 MHz with 320 KB SRAM, 4MB Flash, 2MB PSRAM Expansion headers – 2x 16-pin headers with 27x IO, ADC, DAC, I2C, SPI, UART, USB OTG USB – 1x Type-C USB for 5V power and programming Misc – Reset button and button 0 also used to enter Device Firmware Upgrade (DFU) Dimensions – 34.3 x 25.4 mm Weight – 2.4 grams The board is compatible with Lolin/Wemos […]

ZiGate以太网 - 一个ESP32以太网,WiFi和BLE网关可选的Zigbee连接

突出以太网覆盆子PI 4外壳

Frédéric Dubois,又名fairecasoimeme,最近发布了ZiGate-Ethernet,一个基于Espressif Systems ESP32无线SoC的家庭自动化网关,具有以太网、WiFi和蓝牙LE连接。网关还可以带一个可选的PiZiGate+ Zigbee模块,以支持更广泛的家庭自动化小装置,所有的设计都适合于官方Raspberry Pi 4外壳。zigte -Ethernet规格:无线模块- ESP32- room - 32e,带ESP32双核处理器,16MB flash, PCB天线。通过PiZiGate + x Zigbee模块PCB天线或可选的外部天线USB -微型USB接口对权力和编程扩张16-pin GPIO头10 x GPIO 7 x ADC, UART, 5 v, 3.3 v,和接地Misc——重置和Flash按钮,ESP32 / FTDI UART选择开关,电源- 5 v / 500毫安通过微型USB接口尺寸,[…]