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Founded in 2011 and located in Wuxi National Hi-tech District—China’s hub for IoT innovation—MemsTech is enterprise specializing in the R&D, production, and sales of MEMS pressure sensors.Our sensor products are widely used in medical, automotive, and consumer electronics sectors. With professional development, scientific production management, rigorous packaging and testing, and competitive pricing, we consistently deliver high-performance, cost-effective sensing solutions.
Map of registers
Table of registers:
| Regist er no. | Values | Description |
| 1 | -999-9999 | Differential pressure (limited by measuring range)[ Pa](1 =1 Pa）with sign |
| 2 | 0-1000 | Differential pressure related to range （1 =0.1%;1000= 100%） |
| 3 | 0/1/2/3 | Status log（0: “SENSOR OK”,1: “UNDERLOAD”,2: “OVERLOAD”, 3: “NO SENSOR”）(*) |
| 4 | 1234 | Password log |
| 5 | 1/2/3 | Command log |
| 6 | as per the command table | Parameter log |
| 7 | 0/1 | TAU time constant（0: 0.8s; 1: 4.0s） |
| 8 | 0/1/2/3/4/5/6 | Measuring range(according to the table of measuring ranges) |
| 9 | -999-9999 | Transmitter offset (informative)[ Pa](1 =1 Pa）with sign |
| 10 | -999-9999 | Lower value of the measuring range (informative)[Pa](1 =1 Pa）with sign |
| 11 | -999-9999 | Upper value of the measuring range (informative)[ Pa]（1 = 1 Pa）with sign |
| 12 | 0/1 | Offset calibration (zeroing) status (0: not active; 1: in progress) |
| 13 | 0-65535 | Counter of correct frames |
| 14 | 0-65535 | Exception counter |
| 15 | 0-65535 | CRC error counter |
| 16 | 0-65535 | Byte error counter |
| 17 | 0-65535 | Address error counter |
(*) "SENSOR OK" - correct functioning of the sensor; "UNDERLOAD" - exceeded lower limit;
"OVERLOAD" - exceeded upper limit; 'NO SENSOR - sensor is missing;
Command table:
| Comm and no. | Function | Parameter |
| 1 | Set device address | 1-247 (1-default value |
| 2 | Set transmission rate | 96-9600 b/s(default value) 192-19200 b/s 576-57600 b/s 1152-115200 b/s |
| 3 | Set parity | 0-NO PARITY; no parity bit 1-EVENPARITY;(default value) 2-ODD PARITY, |
| 4 | Set stop bits | 1-1x STOP;1 stop bit(default value) 2-2 x STOP;2 stop bits |
| 5 | Set time constant | 0-0.8s; 1-4.0s; |
| 6 | Set measuring range | ID according to the table of measuring ranges) |
| 7 | Start the calibration process | 1-start offset calibration (zeroing) |
| 8 | Device reset | 1-software device reset |
| Range1 | Range2 | Range3 | Range4 | Range5 | Range6 | Range7 | Range8 |
| 0-25 | 0-50 | 0-100 | 0-250 | -25-25 | -50-50 | -100-100 | -150-150 |
| -100-100 | 0-100 | 0-250 | 0-500 | 0-1000 | 0-1500 | 0-2000 | 0-2500 |
| 0-1000 | 0-1500 | 0-2000 | 0-2500 | 0-3000 | 0-4000 | 0-5000 | 0-7000 |
Notes:
•If you input a wrong or out-of-range parameter value, the value of 0xEEEE shall be entered in the command register.
•Each time the command is called, it must be accompanied by a password (1234 decimal).
•Calling the command through individual registry entries, must be completed by entering the password.
