It´s a kind of a sms sender based in the Sim800l gsm module and the 16F886 microcontroller pic. Each time the user send to the system a sms with the correct command, it will respond with another sms with the actual input and output status. The program read the cellphone number of the incommings sms and then use it to resend another sms with the system status.
If a normal open sensor is connected t...
My version of arduino with ARK connectors and better voltage regulators.
Fully working board
This version of board allow you to upload your code via usb uning CH330N microchip
Now there is also 3.3V high current voltage regulator as well as 5V
- This circuit is used to control the speed of a 12V motor using a PWM signal.
- The transistors Q1-Q4 are there to invert the signal, to amplify it and to derive the voltage still present at the MOSFET at the moment of switching off. D1 and R6 also serve this purpose.
- D2 terminates the induction voltages of the motor.
- C1 and C2 keep the voltage supply stable.
- MP1 measured against G...
- With this PCB it's possible to operate 12 V DC shaft encoders on a 3.3 V microcontroller.
- Can also be operated as a unidirectional 3-channel voltage converter to read 12V signals on the microcontroller.
- Mit diesem Board ist es möglich, 12 V Drehgeber an einem 3,3 V Mikrocontroller zu betreiben.
- Kann auch als unidirektionaler 3-Kanal Spannungswandler betrieben werden, um...
This PCB allows you tu use a 74HC595 switch register an 8 TIP120 transistors.
That allows you to switch on and off 8 dc devices (up to 60V) with a microcontroller.
They can be daisy-chained to increase the nuber of DC outputs at will while using only 3 GPIO pins.
WARNING Overvoltage-Reverse voltage protection with PTC and diode, Overcurrent Protection with PTC U2-U3.
Overdischarge protection with microcontoller.
Wrong setting may cause Injury or Overheating.
Overheating + Battery = Acidic gas + Fire + Expolosion. Only for indoor and well ventilated areas.
Produce at your Own Risk
12 to 15 volt step up converter,12V lead acid battery charger, output voltag...
Una placa para prototipado rapido usando el dispositivo Microchip PIC16F628A y microcontroladores con patillas compatibles.
• Velocidades de operación desde DC - 20 MHz
• Capacidad de interrupción
• Pila de hardware profundo de 8 niveles
• Modos de direccionamiento directo, indirecto y relativo
• 35 instrucciones de una sola palabra:
- Todas las instrucciones solo ciclo...
On reciept of the board and test build I found that I got SCL and SDA on the eeprom mixed up. This means that data can not be written or read with the ISC2 EEPROM. I need to do further testing before updating the design.
This is a Parallax Propeller P8X32A based Mechatronics module V2.1B
The P8X32A is a swiss army knife of microcontrollers with 8 cores (each with dedicated PLLs and counte...