Using the combination of a ESP32, nRF24L01+, fullcolor OLED display and a GPS module to create a low cost wireless tracking system.
Tracker screen.
The blue circle is a team member.
Players screen (for debugging).
Up to 10 players can be tracked.
GPS screen
Show satellites used for positioning with their SNR
Gisteren heb ik de MicroView op kickstarter geplegded. Deze campagne loopt nog tot 17 april, dus wees er snel bij als je nog wilt bestellen.
Wat is de MicroView?
Het is een chip-size arduino met ingebouwd OLED Display met een resolutie van 64×48. Ideaal voor expirementen op bv een breadboard omdat je meteen meet resultaten kunt weergeven op het scherm (zie voorbeeld hieronder).
Er zijn 6 analoge ingangen en 12 digitale ingangen beschikbaar, waarvan 3 met PWM (Pulse-Width-Modulation).
Er zit een apparte bibiotheek/lib bij voor de scherm weergave. Hiermee kun je gemakkelijk waarden weergeven op het scherm.
Het lijkt een ideaal arduino start pakket voor gebruik in ‘t ICT onderwijs.
Zodra hij binnen is komen we met terug met een uitgebreide review.
Today we received some HC05 bluetooth serial modules from asia. It’s a very cheap solution to enable bluetooth on your device, it can be found on ebay for around $1. It’s Bluetooth v2.0 compatible and requires almost no components to connect to an arduino or raspberry pi.
Setting up a connection with another device (smartphone) is very easy. only 4 wires and 2 resistors (for voltage level correction) are required to connect it with an arduino.
CSR BC417143B datasheet
AT Commands used by HC-05 & HC-06 and most of other Bluetooth Devices
COMMAND FUNCTION 1 AT Test UART Connection 2 AT+RESET Reset Device 3 AT+VERSION Querry firmware version 4 AT+ORGL Restore settings to Factory Defaults 5 AT+ADDR Query Device Bluetooth Address 6 AT+NAME Query/Set Device Name 7 AT+RNAME Query Remote Bluetooth Device’s Name 8 AT+ROLE Query/Set Device Role 9 AT+CLASS Query/Set Class of Device CoD 10 AT+IAC Query/Set Inquire Access Code 11 AT+INQM Query/Set Inquire Access Mode 12 AT+PSWD Query/Set Pairing Passkey 13 AT+UART Query/Set UART parameter 14 AT+CMODE Query/Set Connection Mode 15 AT+BIND Query/Set Binding Bluetooth Address 16 AT+POLAR Query/Set LED Output Polarity 17 AT+PIO Set/Reset a User I/O pin 18 AT+MPIO Set/Reset multiple User I/O pin 19 AT+MPIO? Query User I/O pin 20 AT+IPSCAN Query/Set Scanning Parameters 21 AT+SNIFF Query/Set SNIFF Energy Savings Parameters 22 AT+SENM Query/Set Security & Encryption Modes 23 AT+RMSAD Delete Authenticated Device from List 24 AT+FSAD Find Device from Authenticated Device List 25 AT+ADCN Query Total Number of Device from Authenticated Device List 26 AT+MRAD Query Most Recently Used Authenticated Device 27 AT+STATE Query Current Status of the Device 28 AT+INIT Initialize SPP Profile 29 AT+INQ Query Nearby Discoverable Devices 30 AT+INQC Cancel Search for Discoverable Devices 31 AT+PAIR Device Pairing 32 AT+LINK Connect to a Remote Device 33 AT+DISC Disconnect from a Remote Device 34 AT+ENSNIFF Enter Energy Saving mode 35 AT+EXSNIFF Exit Energy Saving mode
more info:
Created a quiz system for playing a party game with 2 teams.
Each team has a box with 4 dome push buttons (sparkfun), so the game can use multiple choice questions.
Each box is connected to the arduino uno that is controlling the detection of the button presses and for giving light feedback. A laptop connected to this arduino is running the game coded in C#/WPF.