Schematics [Archive] - MEL PICBASIC Forum

I/O pins behaviour after a SLEEP command (2 replies)
Any physically large, 64 pin PIC16 or PIC18 chips available? (3 replies)
High frequency counter (1 replies)
Which is most common PIC chip, after 16F628A? (10 replies)
Strange issue with SSR (5 replies)
How does 2N3055 work here? (1 replies)
3642bh display module pinouts on tm1637 module (0 replies)
STM32F031K6 HAL UART Interrupts problem (1 replies)
Question about Optocoupler H11G1 (7 replies)
Homebrew Experimenter's Board (3 replies)
RS232 with multiple slaves (11 replies)
Question about flow sensor (4 replies)
Circuit question (7 replies)
Little help with a LM2596 inverter... (8 replies)
Replacing dtdp relay with mosfets (2 replies)
Fyi: Pic12(l)f1501 4 pwm (1 replies)
something betterthan ULN2803 (4 replies)
Hall-effect Switches and pic Inputs (4 replies)
VPP w/ reset chip (5 replies)
QFN PIC Center Pad. Should I Connect it to Ground? (3 replies)
Transimpedance amp designs for photodiodes (0 replies)
Cheap programmer with modern low voltage PIC support? (7 replies)
Some help with a circuit I'm working on...hopefully (12 replies)
Rectified wave problem (4 replies)
0-60 vdc power supply controlled by pic 0-5vdc (0 replies)
PIC Input Vs Cable Length (8 replies)
Universal Serial-Parallel LCD Controller (0 replies)
Microcode studio not showing data, though it is receiving it (6 replies)
RS232 and RS485 circuit protection (1 replies)
Help with cleaning of AC please (9 replies)
micro SMD PIC board populated ICSP source (2 replies)
Fet for turning on high voltage. (14 replies)
Digital input chips, I am looking for any. (1 replies)
LED Dimmer - What should be used for Switching? (11 replies)
orentation detection (5 replies)
Need this waveform. How to generate it? (6 replies)
Labcentre Proteus Simulation software question (4 replies)
PIC/Resonator ground/Power question. Need help (Little Bit urgent) (3 replies)
Zero-Crossing question (5 replies)
Current to Voltage Converter Schematic Question (10 replies)
Usb Programer 24Cxx 25f80 (3 replies)
simple rs422 to rs232 conversion. (2 replies)
Motor Speed Control via Single Poteniometer? (4 replies)
speedometer with 18f2420 for motorcycle error (13 replies)
MS5541C Depth Sensor Schematic and Software (3 replies)
12V PLC sensor to 3.3V input (3 replies)
How to disconnect GND, with Pic (4 replies)
24v DC to 12v DC converter for LED backlight (10 replies)
Transformerless Power Supply - AC-110v to DC 5v 1A (60hz) (14 replies)
IR decode using pic basic for Holtec Ht6221/6222 (1 replies)
Simple Photodiode On/Off circuit (14 replies)
industrial control signals (3 replies)
USB Programmer: Failure to Program (3 replies)
cheap ds18b20's, are they legit?? (22 replies)
Communicating 2 x-10 transceiver (1 replies)
Switch sensor vs. switch PIC pin (10 replies)
Schematic drawing program (7 replies)
Schematic for Proportional Control of Hydraulic Valve? (3 replies)
Holiday gift for the forum! (2 replies)
Without resetting....Switching PIC over to Backup Battery (5 replies)
Current sensing at high voltages (1 replies)
Voltage Divider help please (1 replies)
How many LEDs could a wood chuck light (5 replies)
Hd44780 (0 replies)
Simple analog pulse (1 replies)
Power advice needed (4 replies)
NiCD - Charging circuit - Using PIC (16 replies)
Need some advice (1 replies)
Help reading schematic (15 replies)
IR transceiver for serial (3 replies)
Can someon identify this connector please? (1 replies)
Program and Circuit will not run WITHOUT an FTDI... (3 replies)
LED Popping (10 replies)
servo control - chip name? (3 replies)
cheap and simple way to measure temperature (14 replies)
Telephone interface questions (18 replies)
Optimizing IR range (12 replies)
4.5V Battery charging circuit.... (2 replies)
Help on Schematic please.... (3 replies)
12F629 LDR - Light Dependant Resistor (15 replies)
2 Beam Optical Pulse Generator (8 replies)
Transferring data over induced coupling (19 replies)
Lab-XT telephone connection question (1 replies)
A java based LCD simulator .. (2 replies)
a little help with capacitive power supply values (81 replies)
Can not recoganize this component? (0 replies)
Advice on Wiegand Buffer (0 replies)
Serious Help Needed-Tried a Lot & Now I am Here (3 replies)
PIC to GSM(Nokia 6310i) (0 replies)
Transformerless Power Supply of 1A at 5Volts! (22 replies)
1 Pin 7-Segment Display (0 replies)
voltage regulator eficiency (2 replies)
Is this simple schematic electrically correct? (4 replies)
How can I get a PIC to switch 2.5V DC to my Opamp pin? (4 replies)
Help with Schematic-Trying to make a MODEM (3 replies)
Basic Stamp BS2 replacement? (5 replies)
Inner workings of adc (11 replies)
Attaching an MIC to SIM300Z module (0 replies)
Pic18F452 temperature circuit enquiry (5 replies)
Reading PIC serout in hyperterminal (5 replies)
Can anyone help a newcomer? (18 replies)
Strangely behaving 16F877a (4 replies)
How powering PIC in auto ? (19 replies)
Safety resistor (3 replies)
PWM and adjustable voltage regulator (0 replies)
9V NiMH charger (0 replies)
24Cxx copier with PIC 16F84A (7 replies)
Line drivers & level restorers (4 replies)
PMDC SERVO MOTOR WITH quadrature encoder DRIVE ? (37 replies)
5v for PIC problem (4 replies)
Can I drive a 5v LED without a current resistor? (31 replies)
2 PICs driven by one Crystal problem (1 replies)
from 5v dc to 1.00v dc precise vref 10mA ? (10 replies)
16F946 pcb footprint (64 tqfp) (2 replies)
Need an engineer to design inverter (0 replies)
salvaged LCD help (1 replies)
Line following robot (0 replies)
ADC Max Impendance and Power saving (3 replies)
pic first build test board not running (11 replies)
OSCTUNE Tuning range (3 replies)
lcd display help (1 replies)
Need "PIC16F84A" Controler schematic Advice... (1 replies)
Pule up, pulse down ...+ve & -ve pulses based around 2.5V (9 replies)
small dc signal amplifier schematic need (9 replies)
Need some suggestion ignition coil pulse detection (8 replies)
LDR to 16F877A (4 replies)
On Screen Displays (OSD) with PIC and MAX 7456 (6 replies)
Etching and ground planes (6 replies)
32.768kHz silicon oscillator (5v) (2 replies)
Need help with a pulse counter project PIC18F2620 (1 replies)
MAX232 minumum connections. (4 replies)
Idea Help, Monitor AC line switch to temporary alternate power (3 replies)
Phototransistor applications? (10 replies)
Microstepper controller (14 replies)
24VAC Transformer from Air Handler, 7805 (16 replies)
PICs and harsh environments (36 replies)
Please help me make an ASK Rx/Tx pair (0 replies)
power supply help ? (10 replies)
Negative voltage for LCD driving? (11 replies)
Electroluminescent LCD backlight (17 replies)
Short circuit portection circuit ? (1 replies)
Transistor selection, PWM fan control (5 replies)
Pic 16Fxx Battery Charger Help (6 replies)
DTMF on a 12V car system (1 replies)
Connecting ibutton to pic! (1 replies)
I need to make H-bridge diver for DC motor ? (7 replies)
Help me with RFID scanner interface it with PIC16F877. (3 replies)
Stepper motor controller (22 replies)
100A pulsed constant current regulator (2 replies)
PIC to Relay (14 replies)
PIC with WIFI module (2 replies)
Input Output interface (2 replies)
Transistor Selection for Switching Relay Coil-with a little bit of info on my "ARSC" (24 replies)
help with pwm (6 replies)
Current flow controller for DC Motors (24 replies)
24V to 3.3V (4 replies)
12F683 Programmer (9 replies)
i need jdm usb circuit (16 replies)
CANT read the TC4432 datasheet correctly? (3 replies)
x-10 transmit & receiver test (7 replies)
Dialer schematic (10 replies)
USB and serial cable connection(s) (3 replies)
120 line to 5v signal (4 replies)
TTL magnetic card reader interface ith PC (3 replies)
DC volts and A/D converter (3 replies)
Digital audio delay (1 replies)
how to connect ac sensor to PIC ? (3 replies)
PS/2 barcode reader to RS232 port - need help (10 replies)
Developement board (8 replies)
linking picbasic to proteues (1 replies)
Need help in booting/wakeup pc by lan using PIC16f628 (1 replies)
Door bell (2 replies)
connecting a 4X4 keypad (6 replies)
Identifying which port to use (2 replies)
6V to 5V (10 replies)
Really simple SD/MMC card socket (12 replies)
Need ISP circuit (6 replies)
Advice on Input circuitry for 0-10v or Pot (18 replies)
need help with power inverter (12 replies)
need universal pic programmer.... (5 replies)
getting started (1 replies)
PH Probe A/D Coverter ? (10 replies)
Read Values of Headphone Jack (1 replies)
Analog Vref Question (3 replies)
LCD Display Project (2 replies)
lcd with Hserout and a max232 connections? help (6 replies)
18F4550 Solar battery charger / regulator & inverter system (14 replies)
How to interface PIC to Optrex 81852 (4 replies)
pic16f627A and 74H374 help (2 replies)
LED with Transistor (2 replies)
Expanded Scale Voltmeter (6 replies)
Looking for a fresh set of eye's (7 replies)
Reccomendation for pic18f4525 programmer to build (1 replies)
door bell , detect activation (11 replies)
Memory (5 replies)
Rfid Reader- Pic (9 replies)
Block diagram for PIC based mp3 player (13 replies)
PIC to AC 220 V switch (9 replies)
Controlling volume of an amplifier.. (33 replies)
Need a programmer? And, ICSP - Effects on rest of circuit? (1 replies)
12v car battery monitoring (2 replies)
Labx2 icp problem .. help please (5 replies)
2.2v to 5v (7 replies)
555 Timer Configuration? (5 replies)
ICSP Help (2 replies)
Table LED Matrix, Weeks of debugging, column problems (27 replies)
Voltage Divider Question (9 replies)
1.5 v to 3v and 5v? Really confused. (6 replies)
MAh - Battery question (6 replies)
Using sound/audio as a potentiometer? (5 replies)
Resistor Ohm Meter (42 replies)
Making circuit with proteus (3 replies)
Math 'N Resistors (0 replies)
LED Matrix Question (28 replies)
Seiko EG7500B-LS Graphic LCD (4 replies)
need help in controlling Fan speed using TRIAC (2 replies)
Help me to invert voltage (2 replies)
I need a (1 replies)
Help me on RC circuit (9 replies)
need help in displaying data send by PC s/w controlling radio scanner. (5 replies)
ICSP and 16F684 (4 replies)
2x16 lcd not working with pic16f72 (4 replies)
destroying my last pic? driving a miniature motor (20 replies)
Help scaling voltage... (6 replies)
5v and 7v on same board - question (1 replies)
Encoder pin out question (2 replies)
AC to PIC read hi or low (6 replies)
High Voltage Danger? When? (14 replies)
Dual 7-Segment LED Display (14 replies)
How to find complimentary mosfets??? (1 replies)
Motor direction control with One button ; no PIC used. (5 replies)
Some comments on serial comms please. (1 replies)
JDM programmer (4 replies)
18B20 temperature sensor and PIC (2 replies)
How do i get pwm oscillator with pic16c56a (4 replies)
Simon Says Game- Schematic Only (2 replies)
PIC-Powered Timer Project (6 replies)
Philips FR951 Schema needed (4 replies)
MAX232 Pin Voltages / Bootloader / Microcode Studio (0 replies)
Info about Snubbers (11 replies)
Public domain (free project) (31 replies)
Off Topic?? - Serial coms. (9 replies)
about filters.. (2 replies)
Pic12f683, Trisio, High Z, A2d (9 replies)
Key Pad Project (5 replies)
Circuit Diagram for interfacing AC to PIC IC? (3 replies)
NTC Thermistor with PWM (2 replies)
Looking for DMX512 schematics (11 replies)
ftdi without eeprom (6 replies)
Low-Cost USB Oscilloscope (40 replies)