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    Topics

    • CharlesC

      Protect your Raspberry PI SD card, use Read-Only filesystem

      Watching Ignoring Scheduled Pinned Locked Moved Blog articles comments life filesystem card log end
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      69 Posts
      48k Views
      H
      Great article, thanks! Can I use this tip to make a Pi print server for some voucher printers and it stay well when it be turned off? Do you suggest some type of memory to be installed on Pi in order to run this way?
    • CharlesC

      PiTInfo : Téléinfo, Emoncms avec Node Red sur Raspberry PI, moins de 30 min, moins de 10€

      Watching Ignoring Scheduled Pinned Locked Moved PiTInfo optocoupleur nodejs emoncms pcb node
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      42 Posts
      24k Views
      N
      @charles J'ai bien reçu les résistances. Heureusement que tu en mets plusieurs, car j'en ai perdue une dès l'ouverture, en tentant de la retourner pour lire l'inscription J'ai remplacé R6 par une 3,3k, et ça à bien l'air de fonctionner. Il ne me reste plus qu'à décoder tout ça... Merci ! pi:~ $ picocom -b 9600 -d 7 -p e -f n /dev/ttyUSB0 ... Terminal ready 01 015469521 C EASF02 000598800 SF05 000000000A000000&000 04 000000000 ! AASF06 000000000 ' EASF07 000000000 EASF0000000000 ) 09 000000000* 10 000000000 " EAS@01 015469521 A EASD02 000599912 010000000202 EBSD03 REF00000009 H PCOQP 09 " SINSTS 00444 R SIAXSNE210424065844 0150< ASN A210024130000 00056SMA4000003091834 02161 _ CCASN-1 E2104240020000100 1 010000130000 243 % STGA 003A4401 B 01144842398903E 9 8 RALAIS 000 B NPARF 02 O NJOURF 00 & NJOURF+1 00 B PJOURF+1 0000C00000008000 0010001 07108002 2110C001 NONUTILE NONU HA NONQPIHA NONUTILE X 010020130212 8 4 NGTF H PLEINE/CREUSE \ 01TARF 011069121 00C049033 /
    • CharlesC

      New Adafruit generic OLED display driver for Raspberry PI

      Watching Ignoring Scheduled Pinned Locked Moved Blog articles comments driver 1.3 0.96 i2c iic
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      53 Posts
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      T
      I followed the steps just like Bob did and im still getting the "cannot find -li2c" error. Honestly i don't see why i need I2C anyways since everything i wanna do is test an SPI display...
    • CharlesC

      ULPNode Low Power Secret Revealead

      Watching Ignoring Scheduled Pinned Locked Moved ULPNode consumption atmega328p battery arduino low
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      15 Posts
      11k Views
      M
      Hello, I have finaly build (recreated) what Charles showed... I have one problem now. How to turn MCP for the first time battery is inserted. Can someone show me how he did it? My schema looks like this and is EN by low state from voltage supervisor. [image: wTe37Sj.png]
    • CharlesC

      Le dongle Téléinfo USB le plus petit est né : MicroTeleinfo

      Watching Ignoring Scheduled Pinned Locked Moved MicroTéléinfo broadcast emoncms dongle carte domotique
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      11 Posts
      15k Views
      L
      Bonsoir ! Je viens de commander la dernière version de la version USB, j'espère recevoir cela très bientôt. Vraiment super tous ces tutos sur la téléinfo. Cela faisait longtemps que je voulais superviser mes consommations. Merci, Laurent.
    • CharlesC

      ULPNode first prototypes status

      Watching Ignoring Scheduled Pinned Locked Moved ULPNode consumption atmega328p battery arduino low
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      3 Posts
      2k Views
      CharlesC
      @cdmsjtr Sorry for my late response, I'm still working on it, the card is not in production yet, I need to finalize small things. Charles
    • CharlesC

      Implementing Bootloader for Ultra Low Power Arduino Wireless Sensor Node : Part 2

      Watching Ignoring Scheduled Pinned Locked Moved ULPNode atmega328 atmega328p battery arduino atmel
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      2 Posts
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      D
      HELLO CHARLES, CAN I REPLACE THE RFM MODULE WITH ZIGBEE ?
    • CharlesC

      Customized Bootloader for Ultra Low Power Arduino Wireless Sensor Node : Part 1

      Watching Ignoring Scheduled Pinned Locked Moved ULPNode atmega328 atmega328p battery arduino atmel
      1
      1 Posts
      1k Views
      No one has replied
    • CharlesC

      Be prepared to new Ultra Low Power Arduino Wireless Sensor Node

      Watching Ignoring Scheduled Pinned Locked Moved ULPNode atmega328 atmega328p battery arduino atmel
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      16 Posts
      7k Views
      Peter Van de PolP
      Dear Charles, I wonder how this story ended. It sounds impressive and just like the kind of board I am looking for. Can you give an update?
    • CharlesC

      Improved RFM12B with accurate RSSI reading Library

      Watching Ignoring Scheduled Pinned Locked Moved Blog articles comments custom detect arssi arduino
      1
      1 Posts
      1k Views
      No one has replied
    • CharlesC

      Smart Humidity and Temperature sensor TH02 Library

      Watching Ignoring Scheduled Pinned Locked Moved TH02 sensor temperature library arduino humidity
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      8 Posts
      4k Views
      CharlesC
      Guys, Humm, that's interesting, I already fixed a problem with negative values in library (see ). As far As I remember this fixed the problem (but may be it's another issue now) Are you using the latest version ?
    • CharlesC

      How to detect RFM12B or NRF24L01 device presence in your code

      Watching Ignoring Scheduled Pinned Locked Moved Blog articles comments module code arduino device detect
      1
      1 Posts
      1k Views
      No one has replied
    • CharlesC

      Teleinfo Broadcast comptatible avec Emoncms

      Watching Ignoring Scheduled Pinned Locked Moved Téléinfo broadcast emoncms modem linux dbiteleinfo
      14
      14 Posts
      7k Views
      BrunoB
      Bonjour, j'utilisais votre programme très utile pour la téléinfo EDF. J'ai du réinstaller raspbian, et j'ai un problème avec raspbian Buster et mariadb. Je n'arrive plus à installer le programme : J'ai déjà remplacé #include <mysql/mysql.h> par #include <mariadb/mysql.h> dans /home/pi/teleinfo/teleinfo.c, mais j'ai encore ces problèmes : $ make cc -DUSE_MYSQL -DUSE_EMONCMS -c teleinfo.c teleinfo.c: In function ‘clean_exit’: teleinfo.c:324:3: warning: implicit declaration of function ‘valuelist_delete’; did you mean ‘list_delete’? [- Wimplicit-function-declaration] valuelist_delete(p_valueslist); ^~~~~~~~~~~~~~~~ list_delete teleinfo.c:363:5: warning: implicit declaration of function ‘uucp_unlock’; did you mean ‘putc_unlocked’? [-Wim plicit-function-declaration] uucp_unlock(); ^~~~~~~~~~~ putc_unlocked teleinfo.c: In function ‘main’: teleinfo.c:2066:32: warning: implicit declaration of function ‘inet_addr’; did you mean ‘list_add’? [-Wimplici t-function-declaration] client.sin_addr.s_addr = inet_addr(opts.network); ^~~~~~~~~ list_add cc -DUSE_EMONCMS -o teleinfo teleinfo.o -lcurl -lmysqlclient /usr/bin/ld : ne peut trouver -lmysqlclient collect2: error: ld returned 1 exit status make: *** [Makefile:34: teleinfo] Error 1 $ sudo make install cc -DUSE_EMONCMS -o teleinfo teleinfo.o -lcurl -lmysqlclient /usr/bin/ld : ne peut trouver -lmysqlclient collect2: error: ld returned 1 exit status make: *** [Makefile:34: teleinfo] Error 1 Auriez vous une idée ? Merci par avance pour votre aide
    • CharlesC

      ArduiPi Getting Started

      Watching Ignoring Scheduled Pinned Locked Moved ArduiPi ftdi arduino external get arduipi
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      3 Posts
      2k Views
      CharlesC
      @schoopy I looked at the schematics and it not possible "as is" but you can do it of course. If your power is 5V I suggest you bypass the ArduiPi Regulator and send 5V to Pi using a wire like as follow [image: 1451775761832-arduipi-power-5v.png]
    • CharlesC

      Universal Library to drive OLED and LCD

      Watching Ignoring Scheduled Pinned Locked Moved Blog articles comments driver 128x64 arduino 128x32 adafruit
      1
      1 Posts
      1k Views
      No one has replied
    • CharlesC

      ArduiLED for driving addressable RGB LED Strip

      Watching Ignoring Scheduled Pinned Locked Moved Blog articles comments addressable arduiled led arduino
      1
      1 Posts
      1k Views
      No one has replied
    • CharlesC

      Use RFM12B, RFM69, Micro SD or Flash EEP using ArduiPi NRF24L01 connector

      Watching Ignoring Scheduled Pinned Locked Moved Blog articles comments arduino at25512 breakout board arduipi
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      9 Posts
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      F
      @Charles No problem ! And thank you for this board.
    • CharlesC

      Enable serial port on Raspberry Pi

      Watching Ignoring Scheduled Pinned Locked Moved Blog articles comments port raspberry enable arduipi
      7
      7 Posts
      3k Views
      CharlesC
      @CuriousCat the original blog article has been updated, you can look into if you neeed more information.
    • CharlesC

      NRF24L01 real life range test

      Watching Ignoring Scheduled Pinned Locked Moved Blog articles comments range module nrf24l01 nrf24 distance
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      12 Posts
      6k Views
      JEEVAN KUMAR VATTURIJ
      "Hello, I am a hobbylist trying to make a better antenna and I was confused about the schematics of the module, is one of the dipole antenna grounded, and the other connected to the IC? while the nordic company gives schematic with a short antenna connect to IC without grounded, the nRF24 module in the photo (looks same with mine) has antenna grounded Can somebody give or find explaination of it? Thanks http://bigbelectronics.in/product.php?product=2-4g-2-5db-built-pcb-antenna-module
    • CharlesC

      Gestion de la Teleinfo avec un Raspberry Pi et une carte ArduiPi

      Watching Ignoring Scheduled Pinned Locked Moved Téléinfo raspberry broadcast teleinfo arduipi
      1
      1 Posts
      1k Views
      No one has replied