RC4-01
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User_guide_RC4-01_180629
Page 4
Hardware
Simplified schematics
Power supply
RC4-01 is supplied from the 3 V, 550 mAh lithium non-rechargeable coin 24.5 mm x 5 mm battery CR-2450. It is possible to
use even a battery with higher capacity, e.g. 620 mAh. Exchanging is possible after unscrewing the rear cover. The polarity
must correspond to the silkscreen marking at the bottom PCB side. RC4-01 is protected against damage due to the wrong
polarity.
The power supply can not be switched off at all (unless removing the battery), the TR sleep mode should be used instead of
this. See chapter
Sleep mode
below.
TR transceiver
The TR-76DA transceiver with built-in PCB antenna is used.
Because the TR is soldered (non-removable), the recommended way
to upload the application code into TR is wireless upload (RFPGM).
Thus, the application engineer should keep a method how to enter
RFPGM during development. See chapter
Demo application
for details.
However, it is also possible to use wired upload. In this case, the
TR
upload
interface (with soldering pads only) is intended to connect the
CK-USB-04A programmer by wires. Refer to the
CK-USB-
04A User’s
guide
, chapter
In-circuit upload
.
Bottom view
