http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - 24d s mcu data s heet p. 1 we nshing?? trw - 24d s mcu rf module 2.4g direct sequence spread spectrum rf module version history version date changes v1.00 may 2 3 , 200 9 1 st. edition v 1 .01 jan 7,2010 2 nd. edition v1.02 july 15, 2010 3 nd. edition
http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - 24d s mcu data s heet p. 2 product profile this module apply to wireless data two - way transmission, working frequency is 2.4ghz and taking spread spectrum technology. strong anti - jamming, especially not impact on the wireless lan, bluetooth receiver, wireless network, wifi, microwave ovens and so on trw - 24dsmcu two - way transceiver module is taking direct sequence spread spectrum dsss . it can reach the highest reliability and show high data rate performance through variable phase modulation , such as psk qpsk(quadrature phase shift keying) dqpsk(di fferential quadrature phase shift keying) .the advantage is for the existing 2.4ghz wireless network in a high - interference environment, it can still maintain good communication. maximum data transf er rate is 250kbps, the biggest output power is +4dbm , wor king voltage rang is 3.5v 6v , build - in uart micro - controller interface and can apply to various data transmitting and short distance of handhold device application, such as wireless mouse, wireless keyboard, wireless remote controller, wireless home automatically control, wire less toy and so on. application ? wireless keyboard and mouse ? remote control ? voip phone ? amr C automatic meter reading ? wireless game pad ? wireless toys ? home automation ? rke C two - way remote keyless entry key feature ? 2.4ghz sequence spread spectrum ? rf output power u p t o +4 dbm ? receive sensitivity u p t o - 98 dbm ? voltage supply from 3.5 v ~ 6 v ? distance range up to 180 m (open s pace) ? dsss data rate up to 250kbps ? auto transaction sequencer no need mcu ? dynamic data rate reception ? uart micro - controller interface (ttl 3v3)
http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - 24d s mcu data s heet p. 3 characteristic block d iagram p arameter min type max unit condition operating condition operating t emperature r ange - 10 + 70 storage t emperature r ange - 40 +90 operating s upply v oltage 3.5 6 v current consumption rx m ode 30 ma tx m ode 48 ma sleep m ode 3 a rf c haracteristic frequency r ange 2400 2490 mhz frequency d eviation 270 330 khz data r ate 15.62 5 1000 kbps tx output p ower - 35 +4 dbm 8 step select rx s ensitivity - 98 dbm link turnaround time 30 65 s modulation dsss 2 . 4 g h z d s s s r f i c b p f b p f s a w f i l t e r r f e n c o d e r b r i d g e c o m m u n i c a t i o n c o n t r o l l e r r e g u l a t o r g n d v c c v d d u a r t r x p o w e r c e u a r t t x r t s c t s t r w - 2 4 d s m c u b l o c k d i a g r a m p 1 . 0 p 1 . 1
http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - 24d s mcu data s heet p. 4 view pin assignment pin function i/o description 1 p2.1 o cts 2 p0.1 i rts 3 p0.4 o uart t x 4 p1.7 i uart r x 5 vcc p power cathode 6 gnd g power n egative 7 vo o 3.3v output 8 p1.0 o if send the data t his pin will puller - low 9 p1.1 o if receive the data this pin will puller - low 10 ce i puller - low to turn off module power
http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - 24d s mcu data s heet p. 5 size
http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - 24d s mcu data s heet p. 6 application circuit 1 2 3 4 a b c d 4 3 2 1 d c b a t itle wensheng size a4 document number trw- 24d smcu date: 31/03/2009 rev sheet: of TRW-24DSMCU to rs232 demo circuit the road map set out in all the patents, copyrights, trade secrets or technology obsessed secretary (know-how) and ownership, without the written consent of the company, will be allowed to copy, photography and reproduced, the company will retain the right to legal recourse. 1 6 2 7 3 8 4 9 5 j1 rs232 3v3 c4 10 5p c5 10 5p c6 10 5p c7 10 5p c8 10 5p c1 + 1 v+ 2 c- 3 c2 + 4 c2 - 5 v- 6 t2 out 7 r2 in 8 r2 out 9 t2 in 10 t1 in 11 r1 out 12 r1 in 13 t1 out 14 gn d 15 vc c 16 u1 adm3 202 p2 .1 1 p0 .1 2 p0 .4 3 p1 .7 4 vc c 5 gn d 6 vo 7 p1 .0 8 p1 .1 9 ce 10 module1 trw-2 4dsmcu j2 dc jack c3 10 6p vcc vcc c1 10 6p r1 1k r2 1k d1 led d2 led s1 sw spst dc 3.6v 6v dcd rxd dsr rt s txd ct s dt r ri sg
http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - 24d s mcu data s heet p. 7 rD interface data rate select p1.1 p1.0 data rate 0 0 4.8k 0 1 9.6k 1 0 19.2k 1 1 19.2k command summary 1. x???McO??r?^ uart m? 0xfe 0xfe 0xfe 0xfe ????M????? 2. ?M 0xfe+1byte( l )+1byte(rf )+1byte( 00)+1byte( gid)+1byte( gid) ? l 0x01(2400mhz) 0x53(2483mhz) lg 1mhz interface data rate select p1.1 p1.0 data rate 0 0 4.8k 0 1 9.6k 1 0 19.2k 1 1 19.2k
http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - 24d s mcu data s heet p. 8 command summary 3. x???McO??r?^ uart m? 0xfe 0x fe 0xfe 0xfe ????M????? 4. ?M 0xfe+1byte( l )+1byte(rf )+1byte( 00)+1byte( gid)+1byte( gid) . ? l 0x01(2400mhz) 0x53(2483mhz) lg 1mhz . ? rf ? value rf data rate modulation mode 00 1m gfsk 01 250k 32 chip 8dr 02 125k 64 chip 8dr 03 62.5k 32 c hip ddr 04 31.25k 64 chip ddr ? in gfsk mode data is transmitted at 1 mbps without any dsss . ? in 8dr mode 1 byte is encoded in each pn code symbol transmitted . ? in ddr mode 2 bits are encoded in each pn code symbol transmitted . ? in sdr mode a single bit is e ncoded in each pn code symbol transmitted . ? ?M id(gid) 2 byte s ??OO 0000 t V???l?O?? 5. x??O value=0x7e ?? =0x7e+1byte( l )+1byte(rf )+1byte(rf )+1byte( gid)+1byte( gid) . 6. ?Y? 0xfd+data( 62byte s ) .
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