Summary of PIC16F84 LED DISPLAY FREQUENCY COUNTER CIRCUIT
This project describes a 6-digit LED frequency counter for rig displays using a PIC16F84 microcontroller and 7-segment LED displays. It utilizes a precision TCXO at 12.8MHz and employs a TD7104P prescaler to extend the counting range up to 300-400MHz. The design includes zero-blanking for leading zeros and uses SC1906 preamps and TC4511 LED drivers. The project enhances frequency measurement accuracy while offering a cost-effective alternative after the original PD4435 display became unavailable.
Parts used in the PIC16F84 Frequency Counter Project:
- PIC16F84 / PIC16F84A-P20 Microcontroller
- 6-digit 7-segment LED displays
- TCXO 12.8 MHz precision oscillator (1 ppm)
- TD7104P prescaler (÷8, ÷1 selectable)
- SC1906 preamp modules
- TC4511 7-segment LED display drivers
- Supporting passive components (resistors, capacitors, etc.)
- Power supply components
LED 6 digit display for rig frequency counter -Just as it may seem at frequency display of rig, and produced a dot LED-PD4435 counter, and make use of this in the future, and that the “sold out, there is… Electronics Projects, PIC16F84 LED Display Frequency Counter Circuit “microchip projects, microcontroller projects, pic16f84 projects,
LED 6 digit display for rig frequency counter -Just as it may seem at frequency display of rig, and produced a dot LED-PD4435 counter, and make use of this in the future, and that the “sold out, there is no plan of the re-arrival” and. To give up this, I made a 6-digit display using the 7-segment LED.
7 segment LED 6-digit precision TCXO 12.8MHz (1ppm), PIC16F84 with 1MHz ~ 300MHz (400MHz) IF offset frequency counter. TD7104P (Prescaler ÷ 8, ÷ 1) +2 SC1906 later in the preamp, PIC 16F84A-P20 count, LED display TC4511 drivers. Left; 144.90MHz handy 200mW transmission. ANT of the counter, lead 5cm yellow alignment there. And Central; 7,649.1 kHz SG signal. Minimum digit 100Hz. Zero blank function put, unnatural 0 of top disappear. And right; at 33.1688MHz, it is not. 433.17MHz handy 200mW transmission.
PIC16F84 FREQUENCY COUNTER PROJECT
The first stage prescaler counter TD7104P (÷ 8). Single power of PIC16F84A-P20 is, 433.17 ÷ 8 = 54.14MHz. However, close to 10kHz stand, display varies the limit. Only minutes to display low 1.2kHz, you’re counting mistake. If shaped by CMOS-TTL input waveforms of PIC, and extends to 60MHz or more probably.
Source: saturn.dti.ne.jp PIC16F84 LED Display Frequency Counter Circuit schematic pic assembly source code files alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-5056.zip
