CrowPanel 1.28 inch and 2.1 inch ESP32 S3 Rotary Display

Elecrow ESP32-S3 rotary displays combine round IPS touchscreen, knob, and press input

Elecrow has added two new ESP32-S3-powered rotary displays to its CrowPanel Advance lineup, which come in 1.28-inch (240×240) and 2.1-inch (480×480) sizes, and feature a round IPS screen with rotary, touch, and press input. Both rotary displays feature IPS capacitive touchscreens, rotary input with a smooth feel, knob-press operation, ambient lighting, USB-C (5V) power, and expansion capabilities via UART, I²C, and FPC connectors. These features make them suitable for DIY projects, IoT prototypes, and embedded product development across various applications, including smart home appliances, industrial control, and UI training scenarios. Elecrow CrowPanel 1.28-inch and 2.1-inch rotary display specifications: SoC – Espressif Systems ESP32-S3R8 CPU – Dual-core Xtensa LX7 processor @ up to 240 MHz Memory – 512 KB SRAM, 8 MB PSRAM Wireless Wi-Fi 4 (802.11 b/g/n, 2.4 GHz) Bluetooth 5.0 LE Storage – 16 MB flash Display Two options 1.28-inch IPS touchscreen, 240 × 240 resolution 2.1-inch IPS touchscreen, […]

ESPNowCam ESP-Now library for ESP32 camera board

ESPNowCam library enables ESP32 video camera or data transmission with the ESP-NOW protocol

ESPNowCam is an open-source library for ESP32 camera boards that relies on the ESP-NOW protocol for efficient point-to-point, one-to-many, or many-to-one video or data transmission. ESP32 microcontrollers already support WiFi or Bluetooth connectivity, but the ESP-NOW offers an alternative in scenarios where low latency is required and/or access to a router is not feasible or practical. That’s why we’ve previously seen ESPNOW used in ESP32 drones. As its name implies, the ESPNowCam project leverages the ESP_NOW wireless protocol for ESP32 video cameras, but can also be used for data transmission. ESPNowCam highlights: Transmission modes One transmitter to multiple receivers using the internal ESPNow broadcasting feature (1:N mode) Peer-to-peer (P2P) connections utilizing MAC address targeting (1:1 mode) Multi-sender mode with one receiver (N:1 mode) No need for IPs, routers, or credentials The project was first released in January 2024, but I’ve only noticed it, and it had several iterations since then. […]


Solar LLM over Meshtastic

Solar-powered LLM over Meshtastic solution may provide live-saving instructions during disasters and emergencies

People are trying to run LLMs on all sorts of low-end hardware with often limited usefulness, and when I saw a solar LLM over Meshtastic demo on X, I first laughed. I did not see the reason for it and LoRa hardware is usually really low-end with Meshtastic open-source firmware typically used for off-grid messaging and GPS location sharing. But after thinking more about it, it could prove useful to receive information through mobile devices during disasters where power and internet connectivity can not be taken for granted. Let’s check Colonel Panic’s solution first. The short post only mentions it’s a solar LLM over Meshtastic using M5Stack hardware. On the left, we must have a power bank charge over USB (through a USB solar panel?) with two USB outputs powering a controller and a board on the right. The main controller with a small display and enclosure is an ESP32-powered […]

Tactility devices with logo

Tactility “operating system” for the ESP32 microcontroller family supports built-in and external applications

Tactility is an operating system that runs on the ESP32 microcontroller series. Created by Dutch software developer, Ken Van Hoeylandt (also known as ByteWelder), Tactility is a project one year in the making inspired by the Flipper Zero and its application platform. The ESP32 operating system can run built-in apps and helper services from flash storage as well as external applications from an SD card. It leverages the Espressif ELF(Executable and Linkable Format) loader to load ELF files from external storage to the executable memory area. Tactility is built to run on any ESP32-based device with a touchscreen since drivers (display, touch, and SD card) can be implemented for any hardware. ESP32-S3 devices are “the best option” due to their performance and larger memory. The LILYGO T-Deck series is highly recommended for its onboard keyboard and sizable display. Preset configurations are available for the LILYGO T-Deck Plus, LILYGO T-Deck, M5Stack […]

Banggood Black Friday Mega Deals

Black Friday and Cyber Monday 2024 – International deals and coupons

While Black Friday and Cyber Monday used to be a US-only event, it changed many years ago, and we’ve been writing about international Black Friday and Cyber Monday deals and coupon codes since 2014, since a large portion of our audience cannot benefit from promotions on Amazon’s Black Friday and Cyber Monday events that will take place from November 21 until December 2 this year. So I’ve gathered some international Black Friday and Cyber Monday 2024 deals and discount coupon codes from relevant manufacturers and popular online stores such as Aliexpress, Banggood, and others. Aliexpress Black Friday and Cyber Monday event Aliexpress’ Black Friday and Cyber Monday 2024 event has already started. There are three periods: Nov 19-21 PST – Warm Up event where users can find and add items to the cart before purchasing during the main event. Nov 22-30 PST – “On Sale” event with discounts up to […]

LILYGO Mini E-Paper ESP32-S3

LILYGO Mini E-Paper Core IoT controller gets ESP32-S3 wireless microcontroller

LILYGO Mini E-Paper Core has gotten an upgrade to the ESP32-S3 wireless microcontroller. The IoT controller was first introduced in 2021 with an ESP32-PICO-D4 system-in-package, a 1.02-inch E-Paper display, and a few GPIOs on the back, and the company kept the same design for the ESP32-S3 model called “Mini E-Paper Core S3”. The tiny ESP32-S3 IoT controller can still be used for integrated into your own project, and the company also provides several shields with nRF24L01 2.4GHz wireless or 433/868 MHz “LoRa” connectivity to transform the device into a longer range IoT device. Mini E-Paper Core S3 specifications Wireless SoC – Espressif Systems ESP32-S3FN4R2 CPU – Dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration Memory – 512KB RAM, 2MB PSRAM Storage – 4MB flash Wireless – 2.4 GHz WiFi 4 and Bluetooth Storage – MicroSD card socket Display – 1.02-inch e-paper display with 128×80 […]

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No code programming SHT40 sensor

Using SenseCraft firmware for no-code programming on Wio Terminal

In the conclusion of our SenseCAP K1100 Sensor Prototype kit review with LoRaWAN and Vision AI, the author suggested that it would be great if SeeedStudio could develop a new firmware that can connect without coding instead of using Arduino programming: I had to rely on my knowledge and experience with LoRaWAN to transmit data wirelessly over long distances. That’s because LoRaWAN has a more complicated connection process than Wi-Fi or Bluetooth. It would be great if Seeed Studio could develop a new firmware that can connect without any coding It did not take long, as SeeedStudio very recently released the first version of SenseCraft open source smart sensor software for no-code sense, process, and uplink that happens to be compatible with the Wio Terminal part of the SenseCAP K1100 development kit. So let’s test the new SenseCraft firmware together. SenseCraft navigation keys We can use Wio Terminal’s joystick as follows: […]

TTGO T-CAN485

TTGO T-CAN485 – An ESP32 board with RS485, CAN bus interfaces

LilyGO is regularly bringing ESP32 boards to market for specific applications, and their latest TTGO T-CAN485 connects ESP32 to CAN bus and RS485 industrial control interfaces. The board also takes 5 to 12V power input via a 2-pin terminal, comes with a microSD card for data storage, a USB Type-C port and CH340K serial chip for programming and debugging, plus a 12-pin GPIO header, some buttons, and an RGB LED. TTGO T-CAN485 board specifications: SoC – Espressif System ESP32 dual-core processor @ up to 240 MHz with 2.4 GHz Wi-Fi, Bluetooth 4.2 LE connectivity Storage – 4MB flash, microSD card socket Industrial control interfaces CAN bus via 3-pin terminal block RS485 via 3-pin terminal block Expansion – Unpopulated 12-pin header with 8 GPIOs configurable as UART, SPI, I2C, plus VDD, GND Debugging – USB-C port for serial access via CH340K USB to TTL chip Misc- Reset and Boot buttons, WS2812 […]

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