Nodes to control RC hobby servos

Enhanced servo implementations to detach servo and allow it to free-wheel (or allow other nodes to control the servo)

number 0-15 to 7segment 0-f

Sensirion SFM3x00 series flow meter. Supported devices include SFM3200, SFM3300 and SFM3400. Wraps a modified version of https://github.com/PubInv/SFM3X00. Volume calculations based on https://github.com/MyElectrons/sfm3300-arduino. This software library has not been submitted for medical device approval; it is provided for research, educational and development purposes only.

Sensirion SGP30 Indoor Air Quality (IAQ) sensor. Wraps https://github.com/adafruit/Adafruit_SGP30. Datasheet: https://sensirion.com/media/documents/984E0DD5/61644B8B/Sensirion_Gas_Sensors_Datasheet_SGP30.pdf.

SGP air quality sensor. Wraps https://github.com/adafruit/Adafruit_SGP40

Arduino library for OLED displays driven by the SH1106G chip. Communication via I2C. Wraps Adafruit_SH130x (https://github.com/adafruit/Adafruit_SH110x). N.B. UNTESTED!

Arduino library for OLED displays driven by the SH1107 chip. Communication via I2C. Wraps Adafruit_SH130x (https://github.com/adafruit/Adafruit_SH110x). Tested using a Pimoroni Mono OLED Breakout (1.12" 128x128 pixels) and ESP32.

Nodes to read analog infrared range meters by Sharp (GP2Y0A) and convert the signal to distance values.

Contains nodes for creating arrays from bits and working with them. Creates a four-byte (20-byte) bit array with free access to the nth bit in the nth byte.

สามารถส่งค่าออก Segment ผ่าน HC595 ได้

Library for the Sensirion SHT2x series of humidity and temperature sensors. Wraps https://github.com/RobTillaart/SHT2x. Datasheet for SHT21: https://sensirion.com/resource/datasheet/sht21

A basic library for sht3x class temperature sensors.

SHT4x relative humidity and temperature sensor. Tested using an SHT40 device. Wraps https://github.com/adafruit/Adafruit_SHT4X

SI1145 UV/IR/Visible Light Sensor. Wraps https://github.com/adafruit/Adafruit_SI1145_Library.

hygrometer-thermometer SI7021 node.

This will filter and stabilize a noisy signal. If tuned well, it can be very fast and precise.

Node for using the sim28-GPS device. It can either show the current Latitude and Longitude, or display all the incoming information from the device on the serial monitor for tracking your position using other software.

Library to work with NB-Not (Narrow Band Internet of Things) module SIM7020 with built-in support network Protocol MQTT (message queuing telemetry transport). This Library is a tool for working with AT commands and can be easily converted to work with other modules of the SIMCOM family.

A simple communication protocol for a UART interface. To read more follow https://medium.com/p/9ce67cc69d3c

SinGen library. Generate's through PWM, two sinusoidal signals opposite each other, the frequency is determined by Hz

Allows the use of multiple buttons on a single analog input. Each button to be wired in series with differing levels of resistors to create voltage outputs of differing values.

SIRAJ Ventilator -LCD-20X4 -ONLY FOR SIRAJ OPEN SURCE Ventilator SIRAJ Emergency Ventilator Project -The SIRAJ Ventilator is an automated bag valve mask (BVM) device utilizing off-the-shelf components to provide safe and continuous hospital-grade mechanical ventilation for COVID-19 patients on an opensource basis. • The SEVP 4 is a controllable, automated add-on solution to the existing and widely available Bag Valve Mask (BVM). The device compresses the BVM with a mechanical system that is able to provide consistent and accurate ventilation with positivepressure. • This solution exists within the top range of highacuity limited-operability (HALO) ventilator solutions with an a priori design to produce volume and pressure cycled ventilation that includes positive end-expiratory pressure (PEEP) and enriched oxygen sources.