Eeprom programmer maplin code#

I decided to wire the RFM12b to a 26-pin female header to avoid breadboard noise, but discovered that the Pi was generating enough of noise of its own, and having the module (more accurately, the antenna) so close to the Pi was affecting reception. At close range, the receiver works very reliably, but as the signal weakens, noise often drowns it out (even just leaning close to the circuit, or moving a component).ДЄ breadboard is fine to test the SPI stuff, and also works well when the transmitter is in close range, but to test the receiver properly, etching a PCB (or even just wiring the bits together) would be a better idea. I used a breadboard to wire this up, and unsurprisingly found this to be far from ideal with the RFM12b module. Probably be removed after I finish experimenting). (I used 'nRES -> GPIO22' in the code, though this will

Optionally, you may want to drive nRES from a GPIO output Pull ups may be required for SDO and SDI (IвЂ™ve never found a definitive specification for SPI вЂ“ it works with them, and it probably works without them too): вЂ“ SDO -> MISO (PU resistor?) You may choose to add current limiting resistors. Pin connections from the RFM01 (and RFM12B) to the Raspberry Pi are as follows.

Eeprom programmer maplin code#

IвЂ™ll incorporate these into the code in future, but until then youвЂ™ll have to figure out where the changes go if you want to build this on Rev-2. Again, the code will need simple modifications. Second, the GPIO pin on header P1-13 is now GPIO27 rather than GPIO21. Changing the base address of the I2C peripheral in the code should be all thatвЂ™s required. First, if youвЂ™re using the BMP085 pressure sensor, then youвЂ™ll need to address I2C-1 rather than I2c-0. Note: the revision 2 boards affect this project in two ways. different frequency, modulation, or both), so while this project will apply in principle to similar devices with different branding, in practice some tweaking may be required.ДЇor anyone who already has a rough idea of whatвЂ™s required, and just wants a quick overview for some pointers, IвЂ™ve presented a summary first below. There are variants of the Fine Offset WH1080 with transmitters of differing types (e.g. ItвЂ™s the data from the mast that this project is focused on, along with the addition of a Bosch BMP085 I2C module to get barometric pressure. The mast contains sensors for temperature, humidity, wind-speed, wind-direction, and rainfall, and transmits data-packets using a 433MHz transmitter. The LCD display also incorporates temperature and humidity sensors for indoor readings, as well as a barometric pressure sensor.

The weather station comprises an LCD display and a mast of sensors. Currently testing on Arduino Yun, but will probably move to a more platform agnostic design to support Dragino and Carambola etc. This project is changing to be microcontroller based, and using an AM receiver module (Aurel RX-4MM5) вЂ“ a much more effective approach вЂ“ arduino-yun-reading-wh1080-using-aurel-rx-4mm5. TheyвЂ™re pin compatible, but the SPI registers differ between the modules, in terms of both register-address and function. I originally used the RFM12b, simply because I had one to hand, but later found that the RFM01 appears to work far better вЂ“ the noise immunity and the range of the RFM01 in OOK mode is noticeably better. This article describes using an RFM01 or RFM12b FSK RF transceiver with a Raspberry Pi to receive sensor data from a Fine Offset WH1080 or WH1081 (specifically a Maplin N96GY) weather stationвЂ™s RF transmitter.