NE555 / HA17555 IC Timer (DIP8)

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(HB100)

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C100NC

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Three circuits are explained, a 555 Timer, 555 Oscillator with Light Dependent Resistor (LDR) and a light/dark switch using a LDR and 555 IC. The working of a 555 IC is also discussed. (VB052)

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20 second voice recorder/playback module (A93010/A96010)

PLEASE NOTE: A96010 or A93010 is supplied depending on availability. Currently only A93010 is available and is the one that is been sold. A96010 is not currently available. The small size is because the IC is in Chip-on-board form. One button is pushed down to record the message. The electret microphone is on the board. The LED turns on during this time. The other button just has to be momentarily pressed to replay the message. A second momentary press during playback will stop the playback. Sampling rate is 4K. All you have to add is the speaker (not included) and 5V DC power (not included). The record play time is determined by the 52K resistor. If you change it to 89K you will get 30 seconds but at a reduced sampling rate. Operating current 25mA. Standby current 10 uA. Size: 34 x 23 x 11 mm. The module comes supplied as you see it in the photo.

OPTIONAL ITEMS (Not included):
2 x (BB089) connector cable to connect the voice recorder to a speaker and power source.
1 x (PB244) Speaker
1 x Battery holder that can hold either 4 x AAA or 4 x AA or 4 x C or 4 x D cells. See our battery holders.

(A96010 & A93010)

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Product #		A96010
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Electronic Projects 12 newsletter

In this newsletter the principle of sensing an object over a distance is described. An optical sensor (LDR) detects the reflected light emmitted by a LED transmitter.
(AA513)

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Product #		AA513
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In this newsletter three circuits are explained: a 555 LED flasher, a running light effect using the 4017B and 555 micro chip and an electrodice. (VB054)

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CAP 47uF Electrolytic Radial 16V

(HB185)

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4-digit Timing Module

Uses microcontroller and crystal for accurate low cost timing. a 4 digit LED multiplexed output display is used. 6 Types of firmware available. The standard included firmware chip (T0) with the module is a programmable down timer of 10,000 sec. Please note all other optional firmware chips (T1 to T5) are available seperately. PCB size: 2”x2.6” Timing accuracy: 0.04%. 9-12VDC Current: 50mA (CPS148)

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Product #		CPS148
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Relay 12V coil 10A/240VAC contacts (SPDT)

Relay 12V, 320 Ohm Coil 10A/240Vac Contacts, SPDT 17.5 x 22.5mm, 15mm height. Operating time: Approx 5ms. Release time Approx 10ms. Temperature Range -55 C to 85 C.
(DB003)

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T8013 TOGGLE SWITCH 1P ON-ON

DB017

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Product #		DB017
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