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PERANCANGAN DISKRIT D FLIP-FLOP MENGGUNAKAN TEKNOLOGI CMOS 0.35 µm Widyastuti Widyastuti; Hamzah Afandi; Ganjar Febriyani Pratiwi
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2018: SEMINAR NASIONAL PENDIDIKAN SAINS DAN TEKNOLOGI
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.415 KB)

Abstract

Accumulator dump is one of the tools used to convert serial data into parallel data on RFID communications. Accumulator dump on RFID communication consists of a series of counters and registers, where one of the supporting circuits in the counter and register is D flip-flop. D flip-flops are one type of flip-flop that is built using RS flip-flops. Discrete circuit design Master-slave flip-flops  are  built  using  NAND  logic  gates  built  using  0.35  µ m  CMOS technology. The results of the D flip-flop circuit design are simulated using LT- SPICE software to see the speed of response and power dissipation in the circuit. Keywords: RFID, CMOS 0.35 µ m, D flip-flop, Dump Accumulator, NAND logic
HALF ADDER UNTUK COUNTER PADA METODE DUMP ACCUMULATOR RFID DENGAN TEKNOLOGI 0.35µm Ganjar Febriyani Pratiwi; Hamzah Afandi; Dyah Nur ‘Ainingsih
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2018: SEMINAR NASIONAL PENDIDIKAN SAINS DAN TEKNOLOGI
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (107.77 KB)

Abstract

RFID tags are divided into active RFID tags and passive RFID tags. In this case  using  a  passive  RFID  tag  that  is  supported  by  using  a  13.56  MHz frequency radio signal. RFID technology is used here to monitor nutrients in the nursery process in the planting medium. The method used in sending data via the 13.56 MHz radio frequency is the Accumulator Dump method. Accumulator dump is a method to change the output of Delta Sigma ADC in the form of serial data into parallel data. The accumulator dump is built from a series  of  registers  and  counters.  For  the  counter  circuit  itself  uses  a combination of NAND gate circuits, Flip-Flop D circuits and Half Adder (HA) circuits. For the half adder circuit itself, it consists of an EX-OR gate and an AND gate. By using 0.35u technology, this half adder circuit is designed on LT- Spice tools which require an input voltage of 3.3 Volts with 11 PMOS and 11 NMOS, with a value of W = 1u and L = 0.35u to produce the desired output. The frequency of the half adder circuit is 50Hz with a maximum power consumption of 0.00363Watt. Keywords: Tag RFID Pasif, Dump Accumulator, Counter, Half Adder
RANCANG BANGUN SISTEM PEMANTAU KETINGGIAN AIR OTOMATIS MENGGUNAKAN SENSOR ULTRASONIK (HC-SR04) BERBASIS ARDUINO UNO DENGAN ANTARMUKA KOMPUTER BERBASIS MICROSOFT VISUAL BASIC 6.0 Rizky Wahyu Pradana; Ganjar Febriyani Pratiwi; Tri Nur Arifin
Jurnal Teknik dan Science Vol. 3 No. 1 (2024): Februari : Jurnal Teknik dan Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/jts.v3i1.1212

Abstract

Efforts can be made to overcome this natural disaster, including providing a drainage system, maintaining forests and monitoring river water levels to determine the possibility of flooding if the level exceeds normal. In this research the author designed a tool to provide warnings before a flood disaster occurs. The design of an automatic water level monitoring system using an ultrasonic sensor (HC-SR04) based on Arduino UNO with a computer interface based on Microsoft Visual Basic 6.0 was created using HC-SR04 to measure distance, Arduino UNO as the main controller for the entire tool, LED and buzzer. When the HC-SR04 measures the distance by emitting waves from the trigger pin as the trigger and the echo pin as the receiver, the distance will then be processed by the Arduino UNO to calculate how many "cm" distances have been measured. If the distance calculated by the Arduino UNO is < 30 cm then the green LED will light up, if the distance is < 20 cm then the yellow LED will light up and the buzzer will sound slowly. However, if the distance is <10 cm, the red LED and yellow LED will light up alternately and the buzzer will sound loudly. Next, the data will be displayed on the PC interface with Microsoft Visual Basic 6.0 according to the distance received.
AUTOMATIC WATERING SYSTEM FOR ANTHURIUM PLANTS POWERED BY A 10 WP SOLAR PANEL Silvia Maharani; Erma Triawati Christina; Ganjar Febriyani Pratiwi
TESLA: Jurnal Teknik Elektro Vol 27 No 2 (2025): TESLA : Jurnal Teknik Elektro
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/tesla.v27i2.35739

Abstract

Anthurium plants are sensitive to soil moisture levels, so a decrease in humidity can disrupt their health and cause the leaves to wilt quickly and die. Manual watering is considered ineffective, especially when the owner is not at home or there is a power outage. Therefore, an independent automatic watering system is needed that utilizes renewable energy using a 10 Wp solar panel. This system consists of a V2.0 soil moisture sensor to detect soil moisture, a DHT22 sensor to detect the temperature around the anthurium plant environment, a relay module as an automatic switch, a DC pump for the plant watering actuator, a buzzer as an audible indicator when the plant is dry, a DFPlayer Mini as a sound module that plays “Anthurium Needs Watering,” and an OLED display that shows soil moisture and temperature information around the anthurium plant, and uses a 12 V 8 Ah battery controlled by SCC. Test results show that the panel is capable of producing a maximum power of 10.21W with an output voltage of 17.9 V and a current of 0.57 A. The charging process for a 12 V 8 Ah battery for 4 hours shows a gradual increase in voltage from 12.73 V to 13.85 V. The automatic watering system activates when soil moisture is < 47%, indicating that the soil is dry. The automatic watering system activates the DC pump to water the plants, accompanied by audio information from the buzzer and mini DFPlayer. When soil moisture is ≥ 47%, indicating that the soil is wet, the water pump, buzzer, and mini DFPlayer automatically stop when the soil moisture is sufficient Abstrak Tanaman anthurium tergolong sensitif terhadap kadar air tanah, sehingga penurunan kelembapan dapat mengganggu kesehatannya dan menyebabkan daun cepat layu hingga mati. Penyiraman secara manual dinilai kurang efektif, terutama saat pemilik tidak berada di tempat atau terjadi pemadaman listrik. Oleh karena itu, diperlukan sistem penyiraman otomatis yang mandiri dengan memanfaatkan energi baru terbarukan dengan menggunakan panel surya 10 Wp. Sistem ini terdiri dari sensor kelembapan tanah V2.0 untuk mendeteksi kelembapan tanah, sensor DHT22 untuk mendeteksi suhu di sekitar lingkungan tanaman anthurium, modul relay sebagai sakelar otomatis, pompa DC untuk aktuator penyiram tanaman, buzzer sebagai indikator bunyi ketika tanaman dalam keadaan kering, DFPlayer Mini sebagai modul pemutar suara berupa “Anthurium Butuh Disiram”, dan OLED display menampilkan informasi kelembapan tanah dan suhu sekitar tanaman anthurium, serta menggunakan baterai 12 V 8 Ah yang dikontrol oleh SCC. Hasil pengujian menunjukkan panel mampu menghasilkan daya maksimum sebesar 10,21W dengan tegangan output mencapai 17,9 V dan arus 0,57 A. Proses pengisian daya pada aki 12 V 8 Ah selama 4 jam menunjukkan peningkatan tegangan secara bertahap dari 12,73 V hingga mencapai 13,85 V. Sistem penyiram otomatis aktif ketika kelembapan tanah < 47% yang menunjukkan kondisi tanah dalam keadaan kering, sistem penyiraman otomatis mengaktifkan pompa DC untuk menyiram tanaman, disertai informasi suara dari buzzer dan Dfplayer mini. Ketika kelembapan tanah ≥ 47% yang mendeteksi tanah dalam kondisi basah, maka pompa air, buzzer, DFPlayer mini berhenti secara otomatis saat kelembapan tanah tercukupi