we nshing?? trw - v 12 rf module 4 18~440 mhz wireless rf hi power transceiver module version history version date changes v1. 01 july . 29 , 2015 1 st. edition http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - v 12 datasheet p. 1
wenshing trw - v 12 module is designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but is not designed, developed and manufactured as contemplated (1) for use accompanying fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system) . (2) for use requiring extremely high reliabili ty (i.e., submersible repeater and artificial satellite). you shall not use this product for the above - mentioned uses. if your equipment is likely to be used for the above - mentioned uses, please consult with our sales representative before use. wenshing component limited shall not be liable against you and/or any third party for any claims or damages arising in connection with the above - mentioned uses of this product. function introduction trw - v 12 is wireless h i gh p ower data two - way transceiver rf module. the key feature of this module is its resilience against interference, which way surpass traditional wireless module. the build in saw filter can remove unnecessary interference signals. when the transmitting distance is not far enough during opera tional environment, relay protocol station can be used to forward signal; also, transmitting to other interface if it is required. this module is fully digitalized structure designed, there is no adjustment required. this module includes ur and i2c interf ace, which provide convenience communication. also, we can modify software, including special monitor point for voltage (a/d), current, output voltage (d/a) according to customer demand. end product requirement can be met without add mcu; this will save de signing time for user. another key feature of tr w - v 8 is its wide operating temperature, which is between - 2 0 and +70 c. the build - in afc can auto - lock frequency, there is no need to worry about frequency shifting after long period of operation. http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - v 12 datasheet p. 2
trw - v 12 ha s wide range of usage other than transmitting date. this module can vibration collector, (detecting landslides) and weather detection. other function can be added accordingly; also, software can be changed, this module is convenient and easy to use. applic ation ? safety monitoring system ? 900mhz wireless cordless ? wireless remote control car ? wireless remote control robot ? meter, water meter, coin data acquisition ? wireless modem ? debris flow detection point ? weather detection point ? wireless transmission network transfer function ? wsn electrical specification parameter min type max unit condition operating condition operating temperature range - 1 0 +27 + 70 operating supply voltage 4.5 5 5.5 v current consumption rx mode (5vdc) 30 35 ma tx mode (5vdc) 500 ma peak rf characteristic frequency range 4 18 434 4 40 mhz data rate 1. 6 128 kbps g fsk tx output power 0 30 dbm r x s ensitivity - 1 28 - 1 2 8 dbm modulation g fsk other esd 2000 v interface data rate 1.2 115.2 kbps http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - v 12 datasheet p. 3
internal block diagram absolute m aximum r ating minimum maximum units operating conditions supply voltages - 0.3 5.5 v vdd 0 v gnd input voltage - 0.3 3.6 v vi(data in) output voltage gnd to 3 gnd to 3 v vo total power dissipation gnd gnd / r eset vdd in p 2 p 0 . 0 3 v out p 0 . 2 p 0 . 3 tx p 0 . 1 / da rx p 0 . 5 p 0 . 7 p 1 . 6 / i 2 c c lk p 1 . 7 / i 2 c d ata dc max 5 v g sensor option temp sensor option g sensor option regulator to ur ttl ( rx ) to ur ttl ( tx ) i 2 c clk i 2 c data mcu rf d / a ext ant trw - v 12 block a / d led led led led switch switch optino optino i 2 c optino http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - v 12 datasheet p. 4
pin assignment pin name i/o description 1 ant i/o to ext antenna 2 gnd rf gnd rf gnd 3 gnd ground ground 4 /reset i active low module reset 5 p20 i/o general i/o usage 6 3v out power 3v output can connect to current under 50ma. 7 p2.0/ crystal i/o general i/o usage, option: can connect to 32.768khz crystal 8 p0.1/auo i/o general i/o usage, option: can be data converted to analog (d/a) 9 p0.5 i/o general i/o usage, option: can be analog converted to data (a / d) 10 p1.6/clk i/o general i/o usage, option: can be used as i2c clk 11 p1.7 i/o general i/o usage, option: can be used as i2c date 12 p0.7 i/o general i/o usage, ( for p roducing t est rf pin) 13 rx i ur interface,(ttl 3v), can connect to rs - 232 chip tx 14 tx o ur interface,(ttl 3v), can connect to rs - 232 chip rx 15 p0.2/ crystal i/o general i/o usage, option: can connect to 32.768 khz crystal 16 p0.0 i/o general i/o usage, 17 vdd in power power supply 3.7~5.5v 18 gnd ground ground http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - v 12 datasheet p. 5
size 16.7 mm 5 . 8 m m 1 1 . 6 5 m m 2 . 0 m m 3 . 0 m m a n t g n d 2 8 . 1 1 m m 28.111mm 16.7 1mm 5.81mm 2.1 0.15 m m 11.65 1 mm http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - v 12 datasheet p. 6
instruction mode ? into set up mode transmit value= 0x01+0x02+ +7e+0x7f,total=127bytes. receive value = 0x01+0x02+ +7e+0x7f, total=127bytes and it transit 0x53 hint notes every second to tell user that it is on instruction mode. ? it needs to be in the set up mode to read or amend any parameter. ? exit code mode transmit value = 0x ff ff ff 55 cc receive value = nothing, it stop transit back 0x53 hint notes every second. ? it needs to be in the set up mode. ? read in product name and model transmit value = 0x ff ff ff 55 aa bb fd receive value (no character) =trw - v8_v001 ? it has information total in 11bytes, the first six characters is product name and last four characters ar e firmware (the contents will be a little different in different version) . ? recover parameter transmit value = 0x ff ff ff 55 aa bb ff receive value = nothing ? delete the original parameter, and recover back to the new set code that is written in when it is out from factory. ? read in inside parameter transmit value = 0x ff ff ff 55 aa bb fe receive value =0x03 00 00 00 00 05 06 9f 50 07 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff (this is the out from factory mode) ? it has information that totals in 31bytes, it is set inside parameter at present. ? set inside parameter transmit value = 0x fe 03 00 00 00 00 05 06 9f 50 07 00 00 ff ff ff ff ff ff ff f f ff ff ff ff ff ff ff ff ff ff ff it transit 32 bytes in total. receive value =0xfd 03 00 00 00 00 05 06 9f 50 07 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff it is 32 bytes in total transit back. it means it is same as the inside parameter if the firs t byte shows fe, after it finish the update. ? it is 31bytes in total, change every parameter. ? the first byte: the starting parameter, 0xfe ? the second byte: interface speed rate, set up range 00 07, the http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - v 12 datasheet p. 7
beginning rate is 9600bps. ? the third~ forth byte group (gid) set up range 0000ffff ? the fifth byte instrument id(sid) set up range 00ff ? the sixth byte wrong parameter, fixed as 0x00 ? the seventh byte transmit rate, set up range 00 07; normally, the rf transmit rate must greater than interface speed rate when setting up, it prevent having the wrong information. ? the eighth ~ tenth byte working frequency, calculation: mhz*100 0=khz, and transfer to 16 bytes. for example: when it is at 434mhz working frequency 434*1000=434000=0x06 9f 5 fill in 06 in the eighth byte, fill in 9f in the ninth byte, fill in 50 in the tenth byte. when it is at 432.5mhz working frequency, 432.5*1000=432500=0x06 99 74; fill in 06 in the eighth byte, fill in 99 in the ninth byte, fill in 74 in the tenth byte. ? the eleventh byte bit0 bit2 shooting rate set up range 0 7 output power dbm set value hex (bit0 5 0 000 12 1 001 17 2 010 21 3 011 24 4 100 25 5 101 26 6 110 27 7 111 bit3 bit5 wrong parameter fixed as 000 bit6 bit7 instrument working mode there are four mode: val ue 0 1 2 3 4 5 6 7 rate(bps) 1200 2400 4800 9600 19.2k 38.4k 57.6k 115.2k value 0 1 2 3 4 5 6 7 rate(bps) 1600 3200 6400 12.8k 25.6k 51.2k 76.8k 128k http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - v 12 datasheet p. 8
mode 1 (long data mode: set up as 00) gid of every instrument can receive info at this mode, and it can specifically use on data info that is larger than 127bytes. mode 2 (id: info mode 1 once gid can transmit to particular sid instrument under this mode, it is one to many; the single info must Q 127bytes. transmission: the first byte is the sid of the receiver, and from the second byte, it becomes data. example: the sid of device a is 55, the sid of device b is 88, and they have the same gid. under mode 2, device a is going to transmit data 0x1234567890, 5 bytes in total, to b device, a then sends data 0x881234567890, 6bytes in total to b, b will receive 0x551234567890, 6byte in total. the first byte is the sid of the transmitter. mode 3 (id: info mode 2 once gid can transmit to particular sid instrument under this mode, it is one to many; the single info must Q 127bytes. transmission: data shall be transmitted under the same rule of the thirteen to thirty - two byte. example: the gid of device a = aaaa, sid = 55; the gid of device b = bbbb, sid = 88; the gid of device c = cccc, sid = 99. a is going to transmit 0x12 34567890 to b, 5 bytes in total. a then sends 0x04ffbbbb881234567890, 10 bytes in total, to b, b will receive 0x1234567890, 5 bytes in total. a is going to transmit 0x1234567890, 5 bytes in total, to b via c. a then sends 0x08ffbbbb88ffcccc991234567890, 14 bytes in total, c will receive 0x1234567890, 5 bytes in total, but b will not receive any data. mode 4 ( saved id data mode: set up as 11) it can set in advance to save particular gid and sid way, it will transmit it back referring to the track it is saved. it can forward the track up to fourteen times, the single info must Q 127bytes. ? the twelfth byte wrong parameter, it fixed as 0x00. ? the thirteenth ~ the thirty - two byte the pre saved track, it only works under mode 4 (saved id data mode). ? the thirteenth byte it shows how much information in the fourteenth byte ~thirty - two byte. http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - v 12 datasheet p. 9
? the fourteenth byte ~ thirty - two byte road formation: ? example 1: 04 ff 12 34 55 11 22 33 44 you can know there is four bytes effective information as ff 12 34 55 from the thirteen byte. ff 12 34 55 means gid=1234 sid=55, this instrument will forward information to gid=1234 sid=55 once ur instrument after receiving it. ? example 2: 05 ff 12 34 55 11 22 33 44 you can know there is five byte effective information as ff 12 34 55 11 from the thirteen byte. ff 12 34 55 11 means, gid=1234 sid=55 11 this instrument will forward information to gid=1234 sid=11 instrument after this instrument transmit information automatically to gid=1234 sid=55 when receiving it through ur. ? example 3 you can know there is six bytes effective information as ff 12 34 55 11 22 from th e thirteenth byte. ff 12 34 55 11 22 means gid=1234 sid=55 11 and 22. it will forward information to gid=1234 sid=11 instrument and gid=1234 sid=22 after this instrument transmit information automatically to gid=1234 sid=55 after receiving it through ur. ? example 4 you can know there is eight bytes effective information as ff 12 34 55 ff 45 67 88. ff 12 34 55 ff 45 67 88 means gid=1234 sid=55 and gid=4567 sid=88. this instrument will forward information to gid=4567 sid=88 instrument once this instrument transmit information automatically to gid=1234 sid=55 when receiving it through ur. http : //www.wenshing.com.tw ; http://www.rf.net.tw trw - v 12 datasheet p. 10
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