A full-featured FET+7135 driver in 15mm? Heck yeah! Run all of the latest firmwares with no compromises with this driver.
Due to recent 7135 component changes, the lowest stable output level is now higher than it has been previously. We cannot guarantee a super low moonlight/firefly mode.
Why buy this driver? The answer is simple: pure performance and quality. We design, assemble, and test these drivers in-house in the USA using the best components available for the job.
We use only fresh, traceable high-qualtiy components from reputable manufacturers because we want these drivers to work great not only today, but in ten or twenty years from now. All boards are reflowed in a J-STD-020 compliant reflow oven using high-quality solder paste.
This driver gives you the best of both worlds: an ultra low resistance FET and a single 7135 linear regulator. The 7135 gives an ultra-efficient moonlight and low mode, with the FET providing near-direct-drive performance (limited mostly by your battery, LED, and connections) on the higher power levels.
All 15mm FET+7135 drivers now generally ship within 3 business days!
PCB Thickness Option
There are two different PCB thickness options:
Wires + Spring Option
There are four different options for how you would like your driver to be configured:
guppy3drv Clicky Firmware (attiny25)
This is the newest update of the guppydrv series by DrJones, now with more modes than ever and thermal protection! For more information, click this link.
Please note that you set your own turbo timer / temperature sensor setting on guppy3drv.
Bistro Clicky Firmware (attiny25)
ToyKeeper hit this one out of the ballpark! This is similar to the BLF A6 firmware, but with a lot more options:
Bistro Configuration Mode
To enter configuration mode, quickly turn off the light 15+ times until it starts to flash. Once it starts to flash, you are in configuration mode.
Once in configuration mode, the light will give a solid flash between 1 and 8 times. The number of solid flashes indicates the option number to be changed. To select/change the option turn the light off turning the strobing flashes that immediately follow the solid flashes.
Here are the configuraiton options:
You can download the Bistro firmware source code here. (Firmware from this source may be updated from time-to-time and may differ slightly from what you receive on your driver).
Crescendo Clicky Firmware (attiny25)
ToyKeeper has been at it again! Crescendo is an awesome clicky ramping firmware with thermal control, among many other awesome features.
For more information about this firmware and user interface, click here. Source code available here.
Standard Clicky Firmware (attiny13a)
Clicky Pin Functions. Soldering these numbered pins to ground will enable these features:
Standard Clicky Firmware Low Voltage Protection. At around 3V under load, the light will blink three times then step down the power level. At around 2.8V under load the light will blink ten times then shut off. This system gives you ample warning and attempts to extend runtime before turning the light off.
BLF A6 Clicky Firmware (attiny13a)
This firmware was created by BLF forum member ToyKeeper, and is a great option for your FET+7135 driver! You can download the source code for this firmware here.
It offers a lot of great features, as follows:
By default, the driver has two mode groups built in. To change mode groups, rapidly switch the driver off 15+ times to enter the configuration group. The light will then blink twice, pause, then blink twice again. You want to switch the light off between the first set of blinks, which means that you want to switch the light off after the first blink you see.
guppydrv DUAL Clicky Firmware Option
This firmware allows the ultimate in user customizability, with 22 built-in mode groups, that the user can select via a series of button presses and a user programmable turbo timer that will automatically step the power down to 50% after the set time is hit (see below for instructions).
Low voltage protection: With 1S cells (non-zener mod) the light will begin to step down output at around 2.8v under load. The light will not shut completely off, but will continue to run at a moonlight level.
User Selectable Groups:
To switch mode groups: rapidly tap the switch 8 times, the light will then enter the programming mode and begin to flash. With the light in programming mode, tap the switch the same number of times as your desired mode group. The light will blink and your mode group will be memorized.
Example: To select mode group 3, tap the switch 8 times quickly to enter programming mode. As soon as the light enters programming mode and beings flashing, tap the switch three times. The light will blink to recognize the mode group change.
To set the turbo timer: rapidly tap the switch 8 times, the light will then enter the programming mode and begin to flash. With the light in programming mode, tap the switch 30 times to enter the turbo timer set mode. The light will then switch to 100% power. When the light is at the desired temperature for the turbo step down, turn the light off. The turbo timer will then be set. The turbo timer steps the light down to 50% regardless of the mode group set.
Electronic Switch Firmware Options (attiny13a)
Standard Electronic Switch Firmware Low Voltage Protection. At around 3V under load, the light will step down the power level. At around 2.8V under load the light will shut off. You can override any low voltage shut down by holding down the electronic switch button. This system gives you ample warning and attempts to extend runtime before turning the light off.
Electronic Switch Firmware Options (attiny85)
A turbo timer may help reduce the chance of overheating.
Bistro / guppydrv firmwares do NOT use a fixed turbo timer.
FREQUENTLY ASKED QUESTIONS:
1. What Is The Input Voltage Range?
2. What Are the Downsides vs. A linear driver, such as the QLITE?
3. What Kind Of Output Can I Expect?
This driver was made possible and is heavily inspired by many members of the BLF flashlight community, especially comfychair (initial concept and development), Mattaus (PCB layout and development), JonnyC (firmware), DrJones (firmware), and wight (single-sided PCB development and advice). If you'd like to learn more about these drivers, and participate in further development, come visit our community at budgetlightforum.com