Teensy PJRC 4.1 Microcontroller 32-Bit USB Development Board (WITH PINS) Headers
It adopts the larger Teensy 3.6 form factor (2.4in x 0.7in) and retains its other powerful I/O capabilities, including a built-in microSD card socket and a USB host port.
PJRC Teensy 4.0 iMXRT1062 Microcontroller Development Board Unlocked & Lockable
Teensy 4.0 iMXRT1062 Microcontroller Development Board by PJRC Standard Unlocked and Lockable/Copy Protected Versions Without Soldered Header PinsTeensy 4.0 is the latest Teensy microcontroller development board from PJRC, offering the fastest microcontroller and powerful peripherals in the Teensy 1.4 by 0.7 inch (3.6 x 1.8 cm) form factor. It features an ARM Cortex-M7 processor at 600MHz, with a NXP iMXRT1062 chip, the fastest microcontroller available today. Teensy 4.0 is the same size and shape as the Teensy 3.2 and retains compatibility with most of its pin functions.The Teensy 4.0 is available in the standard unlocked version, and in a lockable version suitable for commercial products and secure applications to protect your program code from unauthorized access and coping.The NXP iMXRT1062 is a ‘cross-over’ processor, which has the functionality of a microcontroller at the speeds of a microcomputer. It’s perfect for when you need lots of flash, RAM, to crunch lots of data, or when you need two full speed USB ports. It even has a built-in graphics processor!Teensy 4.0 provides support for dynamic clock scaling. Unlike traditional microcontrollers, where changing the clock speed causes wrong baud rates and other issues, Teensy 4.0 hardware and Teensyduino’s software support for Arduino timing functions are designed to allow dynamic speed changes. Serial baud rates, audio streaming sample rates, and Arduino functions like delay() and millis(), and Teensyduino’s extensions like IntervalTimer and elapsedMillis, continue to work properly while the CPU changes speed.Teensy 4.0 also provides a power shut off feature. By connecting a pushbutton to the On/Off pin, the 3.3V power supply can be completely disabled by holding the button for 5 seconds, and turned back on by a brief button press. If a coin cell is connected to VBAT, Teensy 4.0’s RTC also continues to keep track of date & time while the power is off.The ARM Cortex-M7 brings many powerful CPU features to a true real-time microcontroller platform. Cortex-M7 is a dual-issue superscaler processor, meaning the M7 can execute two instructions per clock cycle, at 600MHz (Teensy 4.0 can be overclocked to well beyond 600MHz)! Cortex-M7 is the first ARM microcontroller to use branch prediction. On M4, loops and other code which must branch take three clock cycles. With M7, after a loop has executed a few times, the branch prediction removes that overhead, allowing the branch instruction to run in only a single clock cycle.Tightly Coupled Memory is a special feature that allows Cortex-M7 fast single-cycle access to memory using a pair of 64 bit wide buses. The ITCM bus provides a 64-bit path to fetch instructions. The DTCM bus is actually a pair of 32-bit paths, allowing M7 to perform up to 2 separate memory accesses in the same cycle. These extremely high-speed buses are separate from M7’s main AXI bus, which accesses other memory and peripherals. 512K of memory can be accessed as tightly coupled memory. Teensyduino automatically allocates your Arduino sketch code into ITCM and all non-malloc memory use to the fast DTCM, unless you add extra keywords to override the optimized default. Memory not accessed on the tightly coupled buses is optimized for DMA access by peripherals. Because the bulk of M7’s memory access is done on the 2 tightly coupled buses, powerful DMA-based peripherals have excellent access to the non-TCM memory for highly efficient I/O.Teensy 4.0’s Cortex-M7 processor includes a floating-point unit (FPU) which supports both 64 bit “double” and 32 bit “float”. With M4’s FPU on Teensy 3.5 & 3.6, and also Atmel SAMD51 chips, only 32 bit float is hardware accelerated. Any use of double, double functions like log(), sin(), cos() means slow software implemented math. Teensy 4.0 executes all of these with FPU hardware.Technical Specifications:ARM Cortex-M7 at 600 MHz1024K RAM (512K is tightly coupled)2048K Flash (64K reserved for recovery & EEPROM emulation)2 USB ports, both 480 MBit/sec3 CAN Bus (1 with CAN FD)2 I2S Digital Audio1 S/PDIF Digital Audio1 SDIO (4 bit) native SD3 SPI, all with 16 word FIFO3 I2C, all with 4 byte FIFO7 Serial, all with 4 byte FIFO32 general-purpose DMA channels31 PWM pins40 digital pins, all interrupt capable14 analog pins, 2 ADCs on chipCryptographic AccelerationRandom Number GeneratorRTC for date/timeProgrammable FlexIOPixel Processing PipelinePeripheral cross triggeringPower On/Off managementNote: The Teensy 4.0 does not include headers (soldered pins) and, if needed in your application, will need to be purchased separately and soldered on yourself.Package Includes: 1X PJRC Teensy 4.0 Microcontroller Development Board Without Pins – Version (Standard unlocked or Lockable) is selected in the pulldown selector Printed pinout and usage reference cardAccessories for Teensy 4.0: PJRC Audio Adapter for Teensy 4.0 Rev D 40-pin headers Envistia Mall is an authorized PJRC Teensy distributor. Get it faster! Stocks and ships from our US Colorado office for quick delivery.We provide FREE USPS First Class Shipping with Tracking – Not Economy Shipping
TracePet ESP32 Wi-Fi Signal Pet | Portable 2.4GHz Awareness Monitor
When the air is calm, TracePet stays happy. When it notices suspicious activity like unusual disconnect bursts, rogue-like network behavior, or heavy nearby Wi-Fi traffic, the face and screen color change, and TracePet logs what it saw.
Raspberry Pi 3 Model B V1.2 WiFi 1.2GHz Quad-Core 64-bit 1GB RAM w/ Case & Cable
1 x Raspberry Pi 3 Model B V1.2 board. 1.2GHz 64-bit quad-core ARMv8 CPU, 1GB RAM. 3.5mm audio jack with composite video output. 1 x USB-A to Micro USB power cable. VideoCore IV 3D graphics core.
Digispark Kickstarter Attiny85 USB General Micro Development Board
The Digispark Kickstarter Attiny85 USB General Micro Development Board by Envistia is a versatile embedded development board based on the Arduino platform. With 8 KB of flash program memory and an ARM core, this board is perfect for hobbyists and professionals alike. Its USB feature allows for easy connectivity and programming, making it a convenient tool for various electronic projects. Manufactured in China, this Digispark model is a reliable and efficient choice for microcontroller development.
Digispark Kickstarter Attiny85 USB General Micro Development Board
The Digispark Kickstarter Attiny85 USB General Micro Development Board is a versatile embedded development board based on the Arduino platform. With 8 KB of flash program memory, this board is perfect for small-scale projects and prototyping. The inclusion of the USB feature allows for easy communication and power supply, making it convenient for developers to integrate it into their workflow. Built by Envistia, this board offers a reliable option for those looking to create custom projects and applications.
ATTINY88 Micro Development Board 16Mhz / Digispark ATTINY85 Upgrade for Arduino
ATTiny88 Micro Development Board 16Mhz /Digispark ATTINY85 Upgrade/ Nano V3.0 ATmega328 Extended Compatible with Arduino The ATTiny88 (16.0Mhz) based microcontroller development board is similar to the Arduino microcontroller line, only smaller and a bit less powerful. With the ability to use the familiar Aduino IDE, the ATTiny88 is a great microcontroller board to jump into electronics, or perfect for when other boards are too big or too much. The ATTiny88 (16.0Mhz) is fully assembled except for the headers, which are included and are easy to solder yourself. ATTiny88 Micro Development Board Specifications:Support for the Arduino IDE 1.0+ (OSX/Win/Linux)Power via USB or External Source: 5V USB or 7-12V DC, automatic selectionOn-board 50ma 5V RegulatorBuilt-in USB26 I/O Pins (2 are used for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are progamming via USB)8k Flash Memory (about 6k after bootloader)I2C and SPI26-PWM (26 pins with Software PWM, only two (D9,10) with hardware PWM)ADC on 8 pinsPower LED and Test/Status LEDSize: 44.5 x 18.3 x 3mm (1.75 x 0.72 x 0.19 inches) Package Includes:1 x Attiny88 Microcontroller Development Board with connector pinsLink to online specifications and usage documentation Get it faster! Stocks and ships from our US Colorado office for quick delivery. Contact us for quantity/OEM pricing. We provide FREE USPS First Class Shipping with Tracking – Not Economy Shipping
ATTINY88 Micro Development Board 16Mhz / Digispark ATTINY88 Upgrade for Arduino
Description The Tiny88(16.0Mhz) based microcontroller development board similar to the Arduino line, only cheaper, smaller, and a bit less powerful. With the ability to use the familiar Arduino IDE the LIVE Tiny88(16.0Mhz) is a great board to jump into electronics, or perfect for when an other board is too big or too much.The LIVE Tiny88(16.0Mhz) is shipped fully assembled except for the headersincluded and easy to solder them by yourself. Features & details 1.Support for the Arduino IDE 1.0+ (OSX/Win/Linux) 2. Power via USB or External Source – 5v or 7-35v (12v or less recommended,automatic selection) 3. On-board 500ma 5V Regulator:Built-in USB 4. 26 I/O Pins (2 are used for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB) 5. 8k Flash Memory (about 6k after bootloader) 6. I2C and SPI;26-PWM (26 pins with Software PWM,only two(D9,D10) with hardware PWM ) 7. ADC on 8 pins;Power LED and Test/Status LED 8.Size(mm):44.5×18.3×3 Other Technical Details Country of OriginChina Fast shipping from southern California… 1st class mail no tracking
Digispark Kickstarter Attiny85 USB General Micro Development Board
USB HID Capable — Emulate USB keyboards, mice, and other HID devices. Built-In USB-A Plug — Plugs directly into any USB-A port; no cables required. Arduino IDE Compatible — Program using the familiar Arduino IDE with Digistump board support.
Mesh Radio Node ESP32-S3 LoRa V4 915MHz SX1262 GPS Meshtastic Wifi Solar Kit
Long Battery Life + Smart Power Management with Solar Input: Optimized for low-power applications, sleep mode draws less than 20μA. Battery management features support lithium battery charging, overcharge protection, and seamless switching between USB and battery/solar power. Now equipped with a 3000mAh rechargeable lithium battery, enabling extended operation in portable or remote deployments such as wireless alarms, water meter reading, mobile LoRaWAN nodes, and off-grid sensing solutions—ideal for uninterrupted field use. Plug-and-Play Design: The ESP32 LoRa V4 features a 0.96” OLED display, USB Type-C with ESD protection, dual IP EX antennas (LoRa & 2.4GHz), and expanded header pins. Fully supports A rduino IDE, MicroPython, and ESP-IDF. A top-tier choice among ESP32 boards for makers,.