<!--?php
// A sample PHP Script to POST data using cURL
// Data in JSON format
$json= '[{"name":"Temperature","type":"numeric"},{"name":"LEDOn","type":"bool"}]';
$arr=json_decode($json, false);
echo '
<pre-->';
print_r($arr);
echo '
';
$employee_object = new stdClass;
$employee_object->name = "Temperature";
$employee_object->type = "numeric";
$employee_object1 = new stdClass;
$employee_object1->name = "LEDOn";
$employee_object1->type = "bool";
$data = array
(
$employee_object,
$employee_object1
);
$payload = json_encode($data);
echo "==>".$payload;
$token = '2HSmdfzsEAXB3puVUTi6ZoirV';
// Prepare new cURL resource
$ch = curl_init('https://cloud4rpi.io/api/devices/'.$token.'/config');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLINFO_HEADER_OUT, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $payload);
// Set HTTP Header for POST request
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Content-Type: application/json',
'Content-Length: ' . strlen($payload))
);
// Submit the POST request
$result = curl_exec($ch);
echo $result;
// Close cURL session handle
curl_close($ch);
$json = '{"ts":"date","payload":{"Temperature":24,"LEDOn":true}}';
$arr=json_decode($json, true);
echo '
<pre>';
print_r($arr);
echo '</pre>
';
$dt = date(DateTime::ISO8601);
$carss = array
(
"ts"=>$dt,
"payload"=>array("Temperature"=>22,"LEDOn"=>0)
);
$payload = json_encode($carss);
echo "==>".$payload;
$token = '2HSmdfzsEAXB3puVUTi6ZoirV';
// Prepare new cURL resource
$ch = curl_init('https://cloud4rpi.io/api/devices/'.$token.'/data');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLINFO_HEADER_OUT, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $payload);
// Set HTTP Header for POST request
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Content-Type: application/json',
'Content-Length: ' . strlen($payload))
);
// Submit the POST request
$result = curl_exec($ch);
echo $result;
// Close cURL session handle
curl_close($ch);
?>
Kategori: Mikrokontroller
Hapus rekam jejak perintah di Raspberry Pi
history -c
sudo su
echo “” > /var/log/apache2/error.log
for logs in `find /var/log -type f`; do > $logs; done
Setting printer USB di Raspberry Pi
sudo chown www-data:www-data etc
sudo chmod 775 etc
sudo chown www-data:www-data /dev/usb/lp0
source:
https://www.howtogeek.com/169679/how-to-add-a-printer-to-your-raspberry-pi-or-other-linux-computer/
https://kernelmastery.com/enable-regular-users-to-add-printers-to-cups/
https://maker.pro/raspberry-pi/projects/how-to-turn-a-usb-printer-into-a-wireless-printer-with-raspberry-pi-zero-w
Setting printer serial di raspberry pi
sudo raspi-config
“Interfacing Options,” “Serial.” Turn OFF: login shell over serial, ENABLE: hardware serial port
“Interfacing Options,” enable SSH
sudo apt-get update
sudo apt-get install git cups wiringpi build-essential libcups2-dev libcupsimage2-dev python-serial python-pil python-unidecode
cd ~
git clone https://github.com/adafruit/zj-58
cd zj-58
make
sudo ./install
sudo usermod -a -G lp pi
sudo usermod -a -G lp www-data
reboot
sudo lpadmin -p ZJ-58 -E -v serial:/dev/serial0?baud=9600 -m zjiang/ZJ-58.ppd
sudo lpoptions -d ZJ-58
git clone https://github.com/adafruit/Python-Thermal-Printer
cd Python-Thermal-Printer
python printertest.py
sudo usermod -a -G dialout www-data
sudo usermod -a -G dialout pi
reboot
Membuat Daemon di Raspberry Pi
Buka terminal lalu ketik:
hciconfig hcitool scan
Nama perangkat biasanya bernama: hci0
Misalkan hasilnya adalah:
66:12:13:EE:D1:76 Bluetooth Printer
Test printer dengan perintah:
sudo rfcomm bind /dev/rfcomm0 66:12:13:EE:D1:76 1 echo “Test” > /dev/rfcomm0
Jika printer berhasil mencetak maka koneksi sudah berhasil
Selanjutnya tambahkan file untuk daemon service
sudo leafpad /etc/systemd/system/rfcomm.service
Ketik kode berikut dan simpan:
[Unit] Description=RFCOMM service After=bluetooth.service Requires=bluetooth.service [Service] ExecStart=/usr/bin/rfcomm bind hci0 66:12:13:EE:D1:76 1 [Install] WantedBy=multi-user.target
Ganti nama hci0 dengan nama hasil hciconfig dan ganti 66:12:13:EE:D1:76 dengan hasil hcitool scan
Aktifkan daemon, ubah preferensi printer dan booting
sudo systemctl enable rfcomm sudo systemctl start rfcomm Sudo reboot
Menambahkan RTC pada Raspberry Pi 3
Setting antarmuka I2C
sudo apt-get install -y python-smbus sudo apt-get install -y i2c-tools sudo raspi-config
Pilih Interfacing Option > I2C > Enable lanjutkan dengan booting. Selanjutnya test koneksi dengan perintah i2cdetect untuk antaruka I2C 1. (Cek juga antarmuka ke 0 jika perlu)
sudo i2cdetect -y 1 #isikan angka 1 bila mengunakan I2C1, isikan 0 bila menggunakan I2C 0
Setting RTC
sudo modprobe rtc-ds1307 #load rtc ke kernel sudo bash #masuk ke super user echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device #tambahkan device ds1307 di alamat 0x68 ke I2C1 exit #keluar dari super user sudo hwclock -r #baca waktu dari RTC sudo hwclock -w #tulis RTC berdasarkan sistem
Set agar waktu yang digunakan menggunakan RTC
sudo nano /etc/modules #agar modul rtc-ds1307 diload #tambahkan baris berikut: i2c-bcm2708 rtc-ds1307 sudo nano sudo nano /etc/rc.local #agar dijalankan saat booting #tambahkan baris berikut sebelum exit 0: echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device #tambahkan device ds1307 di alamat 0x68 ke I2C1 sudo hwclock -s #set waktu yang digunkan adalah RTC date #baca waktu saat ini dari RTC
Sumber:
Terlindungi: Proteksi firmware ATmega dengan Nomor Seri
Mengubah USB ISP menjadi USBASP
USBISP berbeda dengan USBASP. USBISP tidak dapat dioperasikan dengan AVRDude, namun harus menggunakan PROG ISP. USB ISP menggunakan uC ATmega88, dengan skema mirim USBASP namun bedanya adalah pin D- pada USB dihubungkan ke PD3, jadi PD3 harus diubah menjadi pin INPUT.
Agar dapat berfungsi jadi USBASP, maka download firmware dari https://www.fischl.de/usbasp/usbasp.2011-05-28.tar.gz dan ekstrak.
Buka file bin/usbasp.atmega88.2011-05-28.hex menggunakan notepad++ atau wordpad.
Lihat pada baris 100B8000,
:100B8000D9F77A9589F708951BB815B88BEF8AB90C
ubah menjadi :
:100B8000D9F77A9589F708951BB815B880EF8AB917
ubah ldi pada DDRD 8BEF menjadi 80EF
dan ubah checksum dari 0C menjadi 17
Buka kemasan USBISP dan hubungkan via (lubang) yang ditandai <– UP –> menggunakan kabel kecil.
Upload dengan USBASP atau Arduino yang telah dijadikan Arduino as ISP.
Note:
# TARGET=atmega8 HFUSE=0xc9 LFUSE=0xef
# TARGET=atmega48 HFUSE=0xdd LFUSE=0xff
# TARGET=atmega88 HFUSE=0xdd LFUSE=0xff
gunakan HEX berikut, jika uC yang digunakan adalah ATmega8:
:100000003BC09FC554C053C052C051C050C04FC028
:100010004EC04DC04CC04BC04AC049C048C047C08C
:1000200046C045C044C0040309041C0377007700A0
:1000300077002E00660069007300630068006C00A2
:100040002E00640065000E0355005300420061005D
:100050007300700012011001FF000008C016DC05DB
:1000600003010102000109021200010100801909C7
:10007000040000000000000011241FBECFE5D4E002
:10008000DEBFCDBF10E0A0E6B0E0E0EAFDE002C0D8
:1000900005900D92A236B107D9F710E0A2E6B0E0C4
:1000A00001C01D92A73AB107E1F702D077C6A8CFE9
:1000B00012BA18BA11BA8FEF87BB17BA93E094BB84
:1000C0008EEF85BB93BF08D478940DD4FECFFF92FA
:1000D0000F931F93CF93DF939C01F62E80916200C4
:1000E000813021F4E90110E000E078C08430D1F3E0
:1000F0001FEF77C080916200813079F580917300A5
:100100009091740020916F003091700040917100C7
:1001100050917200892B31F4CA01B901488121E064
:1001200088D321C0CA01B901488120E082D38091DF
:1001300076008150809376008823A9F460916F0047
:10014000709170008091710090917200488126D367
:10015000809173008093760006C080916F0090912B
:1001600070006881F7D280916300909164000197DC
:100170009093640080936300892BD9F410926200FD
:100180008091750081FF14C08091760090E02091ED
:100190007300309174008217930751F060916F00E3
:1001A0007091700080917100909172004881F6D238
:1001B00011E080916F0090917000A0917100B0915A
:1001C00072000196A11DB11D80936F009093700085
:1001D000A0937100B09372000F5F21960F1508F481
:1001E00089CF812FDF91CF911F910F91FF900895BB
:1001F0000F931F93CF93DF939C01062F8091620092
:100200008250823010F00FEF32C0E90110E029C0B7
:1002100080916200823051F460916F0070917000A3
:10022000809171009091720043D205C080916F005F
:100230009091700071D2888380916F0090917000CE
:10024000A0917100B09172000196A11DB11D809323
:100250006F0090937000A0937100B09372001F5FC5
:1002600021961017A8F2083010F410926200802F27
:10027000DF91CF911F910F910895CF93DF93EC0100
:100280008981813061F49A9902C085E002C0809131
:1002900065001FD110926600A99879D104C0823000
:1002A00021F496D1A99A20E0F7C0833011F5E091AE
:1002B0007800F09179008A81099580936700E09138
:1002C0007800F09179008B81099580936800E09126
:1002D0007800F09179008C81099580936900E09114
:1002E0007800F09179008D81099580936A0024E06F
:1002F000D3C0843011F580916600882391F49B81EE
:1003000080E02A8130E0822B932BAA2797FDA095CD
:10031000BA2F80936F0090937000A0937100B093F8
:1003200072009F8180E02E8130E0822B932B90938E
:1003300064008093630082E090C0873011F5809163
:100340006600882391F49B8180E02A8130E0822B33
:10035000932BAA2797FDA095BA2F80936F009093B7
:100360007000A0937100B09372009F8180E02E8195
:1003700030E0822B932B909364008093630083E0A2
:100380006CC0853021F451D18093670084C08630E1
:10039000D9F580916600882391F49B8180E02A81C1
:1003A00030E0822B932BAA2797FDA095BA2F80933C
:1003B0006F0090937000A0937100B09372008C81D5
:1003C0009D81292F2F7020937500492F50E0407F89
:1003D000507094E0440F551F9A95E1F7480F511D56
:1003E000509374004093730020FF02C04093760046
:1003F0009F8180E02E8130E0822B932B90936400CC
:100400008093630081E029C0883059F580916600AF
:10041000882391F49B8180E02A8130E0822B932B0A
:10042000AA2797FDA095BA2F80936F009093700034
:10043000A0937100B0937200109274001092730038
:10044000109275009F8180E02E8130E0822B932BEB
:10045000909364008093630084E0809362002FEFA8
:100460001BC0893081F481E0809366008A819B8182
:10047000AC81BD8180936F0090937000A093710058
:10048000B093720010CF8A3009F00DCF8A8180932B
:1004900065001092670021E087E690E090938C0061
:1004A00080938B00822FDF91CF910895382F90E0B9
:1004B00006C022B782B7821B8C33E0F39F5F93178D
:1004C000C0F3089580917B008DB980917A008EB938
:1004D0000895282F882311F42AE002C0883028F1DB
:1004E00080E193E0909379008093780010927A00F5
:1004F0002930A9F02A3018F4283051F412C02B30DA
:1005000029F02C3029F481E080937A0081E50AC03B
:1005100082E580937B0081E080937A00089582E5F4
:1005200001C083E580937B00089580EF92E0909373
:100530007900809378002430B1F0253038F42230EF
:10054000B1F0233090F42130C9F415C0263031F0D9
:10055000263038F0273091F483E00AC020937C00E5
:1005600008958CE005C088E103C080E301C080E607
:1005700080937C00089580EC80937C00089522B7DE
:1005800090917C0082B7821B8917E0F3089587B3AE
:100590008C6287BBC298C59892B720917C0082B7C5
:1005A000891B8217E0F3C29A92B782B7891B821720
:1005B000E0F3C29880917800909179008051934047
:1005C00031F480917B008DB980917A008EB90895C5
:1005D00087B3837D87BB88B3837D88BB1DB80895AF
:1005E000482F50917C0020E030E047FF02C0C39AC2
:1005F00001C0C398220FB4992F5FC59A92B782B7F2
:10060000891B8517E0F3C59892B782B7891B8517B8
:10061000E0F33F5F383011F0440FE7CF822F0895A9
:100620008FB9779BFECF8FB108950F931F9300E290
:1006300039C0E0917800F09179008CEA0995E09159
:100640007800F091790083E50995E0917800F091C8
:10065000790080E00995182FE0917800F0917900F9
:1006600080E00995133511F480E01FC01DB8C59ACC
:1006700092B720917C0082B7891B8217E0F3C5985E
:1006800092B782B7891B8217E0F38091780090912E
:1006900079008051934031F480917B008DB9809135
:1006A0007A008EB9015028F681E01F910F910895CC
:1006B000EF92FF920F931F937B018C01862F817025
:1006C000880F880F880FE0917800F09179008062A0
:1006D0000995D801C70129E0B695A7959795879503
:1006E0002A95D1F7E0917800F09179000995169557
:1006F0000795F794E794E0917800F09179008E2DBA
:100700000995E0917800F091790080E009951F91BA
:100710000F91FF90EF9008950F931F938C01E0913C
:100720007800F091790080EA0995E0917800F091E5
:100730007900812F0995E0917800F0917900802F60
:100740000995E0917800F091790080E009951F917A
:100750000F910895FF920F931F938C01F62EE09155
:100760007800F091790080EC0995E0917800F091A3
:100770007900812F0995E0917800F0917900802F20
:100780000995E0917800F09179008F2D09958EE11F
:100790008DDE80E01F910F91FF900895CF92DF9240
:1007A000EF92FF920F931F936B017C01142FE09146
:1007B0007800F09179008CE40995D701C60149E0F1
:1007C000B695A795979587954A95D1F7E0917800CA
:1007D000F09179000995D701C601B695A79597952F
:1007E0008795E0917800F09179000995E091780083
:1007F000F091790080E009951F3F19F48FE056DEF3
:1008000007C002B71EE1C701B60152DF8F3F11F0EA
:1008100080E008C082B7801B8D33A8F302B7115067
:1008200091F781E01F910F91FF90EF90DF90CF90B3
:100830000895CF92DF92EF92FF920F931F936B0177
:100840007C01042F122F862F8170880F880F880F4C
:10085000E0917800F091790080640995D701C60194
:1008600069E0B695A795979587956A95D1F7E09138
:100870007800F09179000995D701C601B695A79542
:1008800097958795E0917800F09179000995E0912E
:100890007800F0917900802F09951123A9F00F3786
:1008A00019F48FE003DE10C002B71EE1C701B601E4
:1008B000FFDE8F3749F482B7801B8D33B8F302B760
:1008C0001150A1F781E001C080E01F910F91FF90CE
:1008D000EF90DF90CF90089585B7836085BF8BB789
:1008E00080648BBF08951F93CF93DF9360918D0039
:1008F000635067FDA3C080918A00CCE0D0E0C81BA4
:10090000D109CF56DF4F809189008D3209F084C024
:10091000683009F091C083EC80937D008AE5809374
:100920006000109277008881807639F0CE01A5DCD6
:10093000282F8F3F09F45FC065C09A81109286000E
:100940008981882321F41092870022E04DC08530F0
:1009500019F490938E0047C08630B1F58B818130B9
:1009600019F484E590E004C0823041F486E690E01A
:1009700090938C0080938B0022E122C08330F9F4A5
:100980008A81882341F486E290E090938C008093E2
:100990008B0024E015C0813041F48AE290E090930E
:1009A0008C0080938B002CE10BC0823041F486E4F4
:1009B00090E090938C0080938B002EE001C020E0AB
:1009C00080E4809377001EC0883021F421E080E924
:1009D00090E00CC0893019F49093900004C08A30E4
:1009E00011F421E001C020E086E890E090938C00B3
:1009F00080938B0007C0888187FD2E8180E88093DB
:100A0000770006C08F81882319F48E81821708F041
:100A1000822F8093610010C08091770087FF0CC007
:100A2000CE0155DB8F3F21F48EE18093600004C03E
:100A3000882311F01092610010928D008091600067
:100A400084FF58C0809161008F3F09F453C0182F74
:100A5000893008F018E0811B8093610080917D004F
:100A600098E8892780937D00112391F18091770088
:100A700087FF08C08EE790E0612FBADB182F89301E
:100A800098F526C020918B0030918C0086FF0DC018
:100A9000AEE7B0E080E090E0F901E80FF91FE491E3
:100AA000ED9301961817C1F708C0912FD901EEE711
:100AB000F0E08D9181939150E1F71150812F90E0FA
:100AC0001F5F0196820F931F90938C0080938B0081
:100AD0008EE790E0612F31D0612F6C5F6C3041F078
:100AE0008FEF8093610004C08FEF809361006EE10F
:100AF0006093600094E186B3837031F49150D9F72C
:100B000010928E0010928800DF91CF911F9108956E
:100B1000A82FB92F80E090E041E050EA60956F5F28
:100B200058F42D9138EF82279795879510F08427F8
:100B300095273F5FC8F3F3CF0895EADF8D939D9328
:100B40000895CF93CFB7CF93C395B09BE9F7B09BF0
:100B500009C0B09B07C0B09B05C0B09B03C0B09B51
:100B600001C0A1C0DF93C0918A00DD27CF56DF4FBF
:100B7000B09B02C0DF91EBCF2F930F931F9306B36F
:100B80002FEF00FB20F94F933F9316B34FEF012750
:100B900000FB21F93BE031C04E7F012F16B32160ED
:100BA00028C0102F4D7F2260000006B329C04B7F64
:100BB0002460012F000016B32BC016B3477F2860B6
:100BC0002AC04F7E06B320612CC04F7D16B3206231
:100BD0002FC04F7B06B3206432C0422706B349932F
:100BE0004FEF0000102710FB20F916B31370C9F166
:100BF000297F91F2012700FB21F906B3237F89F2B7
:100C0000315058F1102710FB22F916B3277E79F2E4
:100C1000012700FB23F92F7C81F206B3102710FB7C
:100C200024F92F7971F200C016B3012700FB25F9D2
:100C30002F7359F200C006B3102710FB26F922309B
:100C400040F200C016B3012700FB27F9243028F634
:100C50004F77206816B30000F9CF10E41ABF0027C1
:100C600017C03B503195C31BD04010E41ABF088118
:100C7000033CE9F00B34D9F0209188001981110F61
:100C80001213EDCF093641F10D3211F0013E39F763
:100C900000938F003F914F911F910F912F91DF9102
:100CA000CAB7C6FD51CFCF91CFBFCF911895209134
:100CB0008F00222379F310918D00112311F5343028
:100CC00012F130938D002093890010918A003BE04F
:100CD000311B30938A0017C000918D0001308CF4D5
:100CE0000AE53091600034FD10C000936000CDE74C
:100CF000D0E00FC02795A8F45150A9F4220F0000AE
:100D0000F9CF4AE503C042ED01C0432FC4E1D0E072
:100D100032E017B31360C09A17BB08B320E413E0A6
:100D20005F93012756E008BB279520F4515021F42A
:100D3000220FF9CF012756E000003B5A08BBD0F242
:100D4000279528F4515029F4220F0000F9CF0127EC
:100D500056E0279508BB20F4515021F4220FF9CF1B
:100D6000012756E02991332308BB21F60C7F10910F
:100D70008E00110FC651D04008BB11F010938800AF
:100D800010E41ABF016017B31C7F402F4C7F5F91A6
:100D900000C000C008BB17BB48BB7CCFF894FFCF96
:020DA0005AFFF8
:00000001FF
Menambahkan Bootloader ATMega8 di Arduino versi 1.5.x ke atas
buka file platforms.txt
cari bagian: tools.avrdude
copy paste barisnya dan ubah menjadi tools.avrdudeM8 dengan menghapus -Uefuse:w:{bootloader.extended_fuses}:m
# AVR Uploader/Programmers tools M8
# ------------------------------
tools.avrdudeM8.cmd.path={runtime.ide.path}/hardware/tools/avr/bin/avrdude
tools.avrdudeM8.config.path={runtime.ide.path}/hardware/tools/avr/etc/avrdude.conf
tools.avrdudeM8.upload.params.verbose=-v -v -v -v
tools.avrdudeM8.upload.params.quiet=-q -q
tools.avrdudeM8.upload.pattern="{cmd.path}" "-C{config.path}" {upload.verbose} -p{build.mcu} -c{upload.protocol} -P{serial.port} -b{upload.speed} -D "-Uflash:w:{build.path}/{build.project_name}.hex:i"
tools.avrdudeM8.program.params.verbose=-v -v -v -v
tools.avrdudeM8.program.params.quiet=-q -q
tools.avrdudeM8.program.pattern="{cmd.path}" "-C{config.path}" {program.verbose} -p{build.mcu} -c{protocol} {program.extra_params} "-Uflash:w:{build.path}/{build.project_name}.hex:i"
tools.avrdudeM8.erase.params.verbose=-v -v -v -v
tools.avrdudeM8.erase.params.quiet=-q -q
tools.avrdudeM8.erase.pattern="{cmd.path}" "-C{config.path}" {erase.verbose} -p{build.mcu} -c{protocol} {program.extra_params} -e -Ulock:w:{bootloader.unlock_bits}:m -Uhfuse:w:{bootloader.high_fuses}:m -Ulfuse:w:{bootloader.low_fuses}:m
tools.avrdudeM8.bootloader.params.verbose=-v -v -v -v
tools.avrdudeM8.bootloader.params.quiet=-q -q
tools.avrdudeM8.bootloader.pattern="{cmd.path}" "-C{config.path}" {bootloader.verbose} -p{build.mcu} -c{protocol} {program.extra_params} "-Uflash:w:{runtime.platform.path}/bootloaders/{bootloader.file}:i" -Ulock:w:{bootloader.lock_bits}:m
Buka Board.txt, cari atmegang.menu.cpu.atmega8=ATmega8 dan tambahkan diatasnya:
atmegang.menu.cpu.atmega8.bootloader.tool=avrdudeM8
Selanjutnya pilih Board: ArduinoNG, Processor: ATmega8, Programmer: (sesuaikan)
Siap untuk klik, Burn Bootloader
Belajar membuat robot berkaki 4 – quadruped
- Rangkai rangka robot dengan motor servo, jangan pasang shaft-nya
- Pasangkan motor servo ke pin 2 s.d 13 Arduino
- Putar motor servo ke 90 derajat dengan script berikut: https://pastebin.com/raw/can4Dtbd
- Pasangkan rangkanya dengan membentuk robot yang sedang berdiri dan kencangkan sekrup
- Upload skrip berikut ke arduino: https://pastebin.com/raw/CkZvM7Vm