Best Spirometers

ACEIRMC ESP32-CAM WiFi + Bluetooth Module WiFi ESP32 CAM Development Board with Camera Module OV2640 2MP + FT232RL FTDI USB to TTL Serial Converter + 20 pin Jumper Wire

ESP32-CAM WiFi + Bluetooth Module WiFi ESP32 CAM Development Board with Camera Module OV2640 2MPcompatible for Arduino, Support Image WiFi Upload and TF Card.
Bluetooth: Bluetooth 4.2 BR/EDR and BLE standard.
Camera WiFi + Bluetooth Module 4M PSRAM Dual-core 32-bit CPU Development Board with OV2640 2MP Camera Module + FT232RL FTDI USB to TTL Serial Converter + 20 pin Jumper Wire.
FTDI USB Serial Adapter comes with the FT232RL chip and uses both 3.3V and 5V operating voltage. Adapter Logic-level can be set via jumpers on the board, which makes simple to connect to your controller. USB power has over current protection, using 500MA self-restore fuse..
This module supports interfaces such as UART / SPI / I2C / PWM / ADC / DAC.

Come with Runcam Split3-lite 1080P HD DVR?Max Micro SD Card Supported 64G(need Class 6 or above, recommend Class 10/UHS-I/UHS-II/UHS-III).
AIO 4IN1 Crazybee F4 Lite Flight Controller built-in 5.8G VTX.
Internal SPI Frsky version (Compatible with ACCST D8/D16, Recommend D8 mode) ? Internal SPI Flysky version(Compatible with AFHDS and AFHDS-2A Flysky transmitter).
External DSM·2/DSM·X version(Compatible with DSM·2/X transmitters) ? External TBS CRSF NANO version(Compatible with TBS ransmitters).
Note:pre-order item,will be available in June 20th,before you pay,pls kindly know,(if you like this item,suggest that you can order first,first pay first send,you will get the item faster than others)thank you..

NRF24L01+PA+LNA Wireless Transceiver Module is a 2.4GHz ISM band transceiver, compatible with Raspberry Pi. Auto-acknowledge and auto-retransmit abilities.
Support up to six channels of data reception.
the transceiver come with power amplifier and SMA antenna, which make the effective communication distance has been greatly expanded..
A host microcontroller can communicate and configure the nRF24L01+ over a 4-pin Serial Peripheral Interface (SPI). The configuration registers are accessible through the SPI connection. Configurable parameters include frequency channel (125 selectable channels), output power, and data rate (data rates: 250kbps, 1Mbps, and 2Mbps)..
RF24L01+ Breakout Adapter: Small power on SMD LED indicator, On-board 3.3V voltage regulator, which accepts +5V power supply input and provides 3.3V for the attached "nRF24L01+" module..
Applications:It can be wildly used in wireless remote control such as RC planes/vehicles, wireless audio, wireless voice transmission such as VoIP, wireless networks, smart home,somatosensory devices, RFID, NFC etc..
Package Included:2 x NRF24L01+PA+LNA Wireless Transceiver Module+2 x SMA Antenna+2 x NRF24L01+ Breakout Adapter.

This item is an logic analyzer designed to be compatible with Logic Analyzer software, The logic for each channel sampling rate of 24M/s. General applications around 10M, enough to cope with a variety ofoccasions.
Sampling rate up to: 24 MHz , can be 24MHz. 16MHz, 12MHz, 8MHz, 4MHz, 2MHz, 1MHz, 500KHz, 250KHz, 200KHz, 100KHz, 50KHz, 25KHz.
Input High Voltage: 2.0V to 5.25V, Input Impedance: 1Mohm || 10pF (typical, approximate).
A total of 8 digital channels, the voltage range is 0V and 5.5V, of which 1.5V is the voltage threshold, below 1.5V is considered low, above 1.5V is considered high, Works with 5V, 3.3V, 2.5V, 2.0V systems. May work with 1.8V but not recommended.Error/Accuracy: pulse-width measurement: +/- 42ns (at 24MHz)..
UART, SPI, IIC and other communication debugging, 24M sampling rate, can automatically analyze UART, IIC, SPI and many other standard protocols.Suitable for single chip development,ARM system development,FPGA development..

...nt protection. The short-circuit do not reset the PC. Wide range of chip 15000+ support, support for serial and parallel series 40/44/48PIN large capacity FLASH.
Unique serial ICSP interface. Supporting the serial download and high-speed parallel high voltage programming. Note: TL866CS does not support ICSP.
Dual I/O SPI and Quad I/O SPI (25Bxxx, 25Dxxx, 25Fxxx, 25Lxxx, 25Pxxx, 25Qxxx, 25Sxxx, 25Txxx, 25Uxxx, 25Vxxx, 25Wxxx, 25Xxxx, 26Vxxx, 45PExx, MX26Lxxx ).DataFlash (AT45Dxxx, AT26Dxxx),Parallel NOR Flash: 28Fxxx, 29Cxxx, 29Fxxx, 29BVxxx, 29LVxxx, 29Wxxx, 49Fxxx series, Samsung'sK8Pxxxx, K8Dxxxx series,EPROM: NMOS/CMOS, 27xxx and 27Cxxx series,EEPROM: NMOS/CMOS, 28xxx, 28Cxxx, 27EExxx series, Serial E(E)PROM: 24XXX,25XXX series,Microcontrollers MCS51 series:89Cxxx, 89Sxxx, 89EXXX,89VX.

...rone flight, especially suitable for indoor flying or racing flying.
✈New onboard OpenVTX , max power up to 400mw, provide RCE and PIT mode, it was very useful for race event. Compatible for 1S Lipo/LIHV batteries. Recommend 1S 450mah/550mah/650mah batteries (Not Included).
✈Warm Tips: Receiver Option - 2.4G ELRS SPI or SPI Frsky D8/D16, not compatible with EMAX E6 radio. Simple Operation- no need to assemble, keep it simple to control for beginner practicing flying, but need the drivers and software to set everything up.

The Pico is a low cost, high performance microcontroller board built around the Raspberry Pi RP2040 chip Dual core ARM Cortex M0+ processor at up to 133MHz with variable core frequency 2x SPI, 2x I2C, 2x UART, 3x 12-bit ADC and 16x controllable PWM channels.
Includes Vilros Picoboat Keychain Carrying Case.

The Pico is a low cost, high performance microcontroller board built around the Raspberry Pi RP2040 chip Dual core ARM Cortex M0+ processor at up to 133MHz with variable core frequency 2x SPI, 2x I2C, 2x UART, 3x 12-bit ADC and 16x controllable PWM channels.
Includes Vilros Picoboat Keychain Carrying Case.