Introduction Of The Over The Air Update (OTA Update) This article discusses about how to update a microcontroller’s program/chip firmware over the air (OTA Update). With increasing the source code lines and the firmware/program size, probability of errors will increase. So the application of OTA update is usually in smart circuits with larger firmware size.…
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Like “Arduino”, you can make your own WiCard on a breadboard. If you want to make WiCard on a breadboard before making the PCB, all you need is some resistors and capacitors, a breadboard, wires, an ATMega8a (DIP), an ESP8266 module (with a 32 Megabit flash memory). The Schematic Here’s the connections guide: …
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WiCard 32 Bit Timer There’s a 32 bit timer counter in WiCard WiFi module. The timer calls its handler function whenever its counter reaches to 0. The unit of the timer counter is micro second (uS). This feature in the current revision is limited. So the real time unit is 1000 uS. That means the…
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WiCard ADC (Analogue to Digital Converter) There are 22 lines of the pins available for the user to program in WiCard WiFi module. 8 of these lines can be set as “Analogue to Digital Converter” (ADC) input. PIN Port Bit Analogue to Digital Converter A01 VCC 3.3v A02 Ground A03 0 A04 1 A05 2…
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WiCard PCInt (Pin Change Interrupt) There are 22 lines of the pins available for the user to program. You can set 20 of these lines as logical input (GPI) and interrupt (PCInt). Also you can set 19 of them as logical output (GPIO). PIN PortBit Rising Edge Interrupt Falling Edge Interrupt A01 VCC 3.3v A02…
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WiCard GPIO (General Purpose Input Output) There are 22 lines of the pins available for the user to program. 20 of these lines can be set as logical input (GPI) and interrupt (PCInt). Furthermore 19 of them can be set as logical output (GPIO). PIN Port Bit Input Output A01 VCC 3.3v A02 Ground A03…
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WiCard Configuration, Settings and Internal Page Every WiCard has an internal page for settings, program and configuring the module. The default page address is 192.168.4.1. In this article we talked about how to configure your WiCard module. Also watch the tutorial video. First Configuration To turning the WiCard on, plug both VCCs (A1,B15) to…
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WiCard PWM (Pulse Width Modulator) The WiCard has 19 PWM lines which are able to be set at the same time. The following table shows which pins are able to be set as PWM: PIN PortBit Pulse Width Modulator Output A01 VCC 3.3v A02 Ground A03 0 * A04 1 * A05 2 * A06…
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WiCard SSM (Square Signal Modulator) Square Signal Modulator or “SSM” is a function which generates square signal pulses with carrier signals. One of the most useful application of Square Signal Modulator is “Infrared Remote Controllers”. The WiCard has 19 lines which you can set as SSM channel. But only one channel can execute Square Signal…
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WiCard 1.3 has been designed for producing in a high quantity. More engineers have reviewed the schematic and PCB of this revision of WiCard. WiCard 1.3 uses more and smaller parts than WiCard 1.0. Therefore WiCard 1.3 is a neat module for the producers and manufacturers to produce. We have already published a complete article…
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