Cyberdeck project

Road to design my own cyberdeck,

Raspberry pi3 , LCD 5 inch, LAN, USB, Aux

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STM32 (Bluepill) with i2c bme280

Sample code stm32duino upload via stlink

#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>

Adafruit_BME280 bme;

void setup() 
{
    Serial.begin(115200);
    bme.begin(0x76); //i2c address must declare,or try i2c scanner first
}
void loop() 
{
    Serial.print("Temperat: ");   
    Serial.println(bme.readTemperature(),1);
    Serial.print("Humidity: ");
    Serial.println(bme.readHumidity(),1);
    Serial.print("Pressure: ");     
    Serial.println((bme.readPressure()/100),1);              
    delay(1000);
}

Rumus menghitung panjang antenna LoRa 923 Mhz untuk monopole antenna

Detailnya silahkan lihat video diatas

Dan untuk diindonesia karena menggunakan Freq 920-923 kira kira panjang antena yang digunakan adalah sekitar 7,79 – 7,81 cm

Happy Coding

Salam Ngoprek

Freecad additive loft from multiple sketch

5$ DIY radiation shield

I made some fun project for weather monitoring for measuring temperature, humidity, pressure using BME 680, lora modul and my first sensor like this

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And after a couple days i realize the sensor measuring temperature is too high maybe because sensor measuring inside the box, after googling and looking other solution and my idea is making radiation shield and i end up with DIY radiation shield using some cheap plastic plates.

I bought 2$ for 8 plastic plates but i only use 6 because my sensor is small, and i also buy some spacer for mounting the plates its 2$ for 20 spacer i’m using 1 inches spacer, and 1$ for other material like cable ties and also spray paint

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And this is it my cheap radiation shield 🙂 and i’m happy for the result

Happy Coding

Salam ngoprek

Internet speed monitoring using grafana and telegraf in docker

Clone project here https://github.com/susiloharjo/internet-speedtest-docker-grafana-telegraf

Edited for running on raspberry pi

Happy codding

Salam ngoprek

Multiple output function in node-red

This is sample flow for multiple output in one function in node-red

[{"id":"5f08a336.d9c24c","type":"function","z":"2aaa7997.d6ad76","name":"","func":"raw = msg.payload.object;\n\nvar msg1 = { payload:raw.analogInput[1]};\nvar msg2 = { payload:raw.analogInput[2]};\nvar msg3 = { payload:raw.analogOutput[3]};\nvar msg4 = { payload:raw.temperatureSensor[3]};\nvar msg5 = { payload:raw.humiditySensor[4]};\nvar msg6 = { payload:raw.barometer[5]};\n\n\nreturn [ msg1, msg2, msg3, msg4, msg5, msg6 ];\n\n// msg.payload ={\n//     battery : raw[1],\n//     solar:raw[2]\n// }\n// return msg;","outputs":6,"noerr":0,"initialize":"","finalize":"","x":520,"y":660,"wires":[["719a5264.f5757c"],["1d8c7f1.9f75281"],["e4b2ebe4.6b0728"],["418e174c.6f7258"],["46ea126c.0ec36c"],["703fee7.477581"]]}]

Arduino zero serial print not show

I bought The SAMD21 Mini is a Pro Mini-sized for the ATSAMD21G18 from bangood this is arduino zero clone platform and the form factor is really small and i think this is great replacement for arduino mini pro, this is the spec

• ATSAMD21G18 32-bit/48MHz ARM Cortex-M0+
• 256KB Flash Memory
• 32KB SRAM32KB of EEPROM (emulated in Flash)
• 22 GPIO Count 
• 14 ADC Channels at 12-bit ResolutionAnalog-to-Digital and Digital-to-Analog Converters (ADC & DAC) 
• RAW: 3.5V-6.0VVCC: 600mA  3.3V 
• Pro Mini/Micro Layout
• Integrated USB Controller

And today i connected this modul to Bosch sensor BME 680 modul using i2c connection, for the first time this board not print any Serial println, after browsing at internet i found the serial print must be activated by adding some command below

#define Serial SerialUSB

And this the complete code if you want to try it

install pihole at docker swarm with nfs share

I’m using portainer

This is my stack

version: "3.7"
services:
  pihole:
    image: pihole/pihole:latest
    ports:
      - "53:53/tcp"
      - "53:53/udp"
      - "67:67/udp"
      - "80:80/tcp"
      - "443:443/tcp"
    environment:
      TZ: 'Asia/Jakarta'
      WEBPASSWORD: 'password'
    volumes:
      - 'pihole.vol:/etc/pihole/'
      - 'pihole.dns:/etc/dnsmasq.d/'

volumes:
  pihole.vol:
    driver: local
    driver_opts:
      type: "nfs"
      o: addr=192.168.0.13,nolock,soft,rw
      device: ":/media/fdisk/container/pihole2/pihole"
      
  pihole.dns:
    driver: local
    driver_opts:
      type: "nfs"
      o: addr=192.168.0.13,nolock,soft,rw
      device: ":/media/fdisk/container/pihole2/dnsmasq.d"

Don’t forget to mkdir pihole and dnsmasq.d in share directory

Install node-red in docker swarm with share data in nfs

I’m using portainer

Please read my note before this for setting nfs

This is my docker stack ‘

version: "3.7"

services:
  node-red:
    image: nodered/node-red:latest
    environment:
      - TZ=Asia/Jakarta
    ports:
      - "1880:1880"
    networks:
      - node-red-net
    volumes:
      - nodered.vol:/data
    user: root:root

volumes:
  nodered.vol:
    driver: local
    driver_opts:
      type: "nfs"
      o: addr=192.168.0.13,nolock,soft,rw
      device: ":/media/fdisk/nodered/"

networks:
  node-red-net:

If you have permission problem when you running your stack in nfs share maybe you can add user:root:root in your stack it works for me

Happy Coding

Salam Ngoprek