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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)2 s+ F( ?1 ~( y' X2 x& Q. Y
- #include <ESP8266HTTPClient.h>$ u. Q& i0 {2 A) s, @
- #include <ESP8266WiFi.h>! K! H& S! l2 ?7 ^$ ~; H
- #include <ESP8266WiFiMulti.h>
6 q5 C# F/ s- ?+ D: _ - #include <ESP8266WebServer.h>+ L6 w: p; \. b% f
- #include <arduino.h>( x* Q+ c; X% ]
- ESP8266WiFiMulti WiFiMulti;
1 I# D3 f! N. W$ C - ESP8266WebServer server(80);- g/ t6 ]6 |! N( _3 B- G8 A5 ^
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 z2 z: t* K" i8 C: [% s7 z, ]3 R
- ADC_MODE(ADC_VCC);* ~; D4 s! s8 X$ O9 h6 ]0 q% E3 @
- void setup() {# d6 W0 Y) u, t) J5 ]5 T. ?6 `
- Serial.begin(115200);
3 P* Q7 @8 g0 ^2 f, M+ F2 } - Serial.print("\r\n\n");
7 D) k; Z2 I B( v: c8 s - pinMode(2,OUTPUT);
# `/ X1 D9 Q7 } - // WIFI/ F2 H% G- i0 f k! K
- WiFi.mode(WIFI_STA);7 N% _0 `7 c$ a5 n A
- WiFi.hostname("Sparkle");
! ^4 f9 K$ q8 W5 B - WiFiMulti.addAP("wifi ssid", "wifi password");' e& A5 h- P4 m* z3 b7 I: W |
- int tryNum = 15;8 ^1 r5 x8 a6 {! _( s
- Serial.print("Connect WiFi");
# | ]3 r( a& K! q - while (WiFiMulti.run() != WL_CONNECTED) {+ s" n8 d5 i! ~6 O% _( f/ `! z
- digitalWrite(2,0);
7 G* ~8 `+ e3 a+ O( w - delay(200);
# z& [) `' C& _5 w: V V3 z- Z% F - digitalWrite(2,1);+ \9 k/ S {7 J# w% L( Q x0 v N
- delay(300);
3 L* O$ y$ \7 ?3 [* S0 {5 h - Serial.print(".");
) A- T5 Y. _" l - tryNum--;( n+ M: t& l# g# D: T& x
- if (tryNum == 0) { M5 A6 x1 \" \" H% p' H
- // 1min0 I# g6 R7 P$ x) h, A. j
- // ESP.deepSleep(60e6);
9 ^ O5 P4 o2 _ - ESP.deepSleep(0);' j0 \7 C/ `# R, f& p, `5 s
- }/ k/ \: j) s. ]2 C, u3 D% U* m
- }
1 E* B7 H2 K3 n+ Z! l - Serial.print("\r\n");/ {9 b' F7 U8 W$ b" S8 o. S y
- digitalWrite(2,1);
' V9 T- F% |! v$ s+ j* T - Serial.print("IP address : ");0 d& z/ D- L0 S
- Serial.println(WiFi.localIP());8 R( A4 t; Z3 p( p8 e4 N4 R
- server.on("/", HTTP_GET, [](){8 N* l: W/ R* R0 m+ I
- server.sendHeader("Connection", "close");: Z6 V I% D1 k1 q0 q
- server.send(200, "text/html", serverIndex);
% l8 n( a' J( z: ?1 H - });! b7 `5 n4 V6 h& q1 E* E& K% a
- server.on("/update", HTTP_POST, [](){
6 r. B, d! Q9 A6 d3 b; x - server.sendHeader("Connection", "close");0 N/ ~2 U# E9 N. Y3 H
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 {8 P1 I; k X! d/ y6 b
- ESP.restart();
. r+ ]4 e. u( z h - },[](){1 `* r3 R& U! t+ q# y/ o) [
- HTTPUpload& upload = server.upload();
& U4 ?5 x# s2 x9 K* m - if(upload.status == UPLOAD_FILE_START){9 x, Q. Q. F: v, w
- Serial.setDebugOutput(true);
( P$ H% r0 \( n - Serial.printf("Update: %s\n", upload.filename.c_str());1 \2 W! s- M% B' d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
5 s! c! P a+ ~4 j' i2 q- p - if(!Update.begin(maxSketchSpace)){. P# t0 L3 @+ R6 Z% O! ?6 G
- Update.printError(Serial);8 B% F# Y6 n2 z) S. n
- }
: `5 k2 G) h4 m' F; } - } else if(upload.status == UPLOAD_FILE_WRITE){( H7 E6 [( O& A! B- C9 I
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ G7 m5 p) N4 _" _6 |: ` - Update.printError(Serial);
3 {+ M8 t$ A% Y& i& _ - }3 f3 e4 R; i2 ^
- } else if(upload.status == UPLOAD_FILE_END){, t5 `* a5 b+ l) f+ \+ S8 X o' ]( y
- if(Update.end(true)){
" N8 b) B; d; z7 i$ {! r) [ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 \1 X1 ]: @9 q: u9 O2 A' C3 m
- } else {
. B% o- V" F& u- g- X - Update.printError(Serial);0 a$ Y$ @ f8 t% }9 l
- }
$ H" {2 u* H9 x2 r6 p7 L, f! m - Serial.setDebugOutput(false);
1 r; t3 P' }8 [ A: w - }- H, v. E& M# z* a1 E" A6 a; q! j, x
- yield();' K. v( D. L4 h
- });% }- ]7 _ }- W* l, Z
- ( Z7 A, W5 d4 W; F' x5 \
- digitalWrite(2,0); ~5 _ g T9 c- |/ z- i
- mainAction();3 r7 Z3 [- V% d- g1 _7 ~: L7 T
- if (digitalRead(0)){
+ V4 a( k3 J7 R B - ESP.deepSleep(0);
; L: W' U/ x6 ? R1 D, Q9 S6 j - } else {
. T( n# R( y4 A( \9 u2 K& g) L - server.begin();7 G% b) { a+ T
- }. g- Q! R! U+ I/ Y: U# Z
- }
. V4 k g; ]1 ]0 [* S - void loop() {
: j+ Q- o/ T" p7 x - server.handleClient();7 e Z8 g$ r4 \$ _% b
- delay(1);
) }; Q* |2 m0 W I' |# i" z! A" u4 H - }0 F' ~/ c4 ]. `) |0 t5 G) n1 c
- String doGet(String url){
% X- W: H5 f+ X+ v; | - if ((WiFiMulti.run() == WL_CONNECTED)) {
, H, y4 H9 T. @* W6 c$ @ - HTTPClient http;0 g" i9 k, d& Z7 m: j1 f
- Serial.println("[HTTP] begin...");
# p4 ~1 F) [% F) t3 H- a" }* ]5 R - if (url.startsWith("https")) {
- f* C6 E$ x) ~8 h4 K* X6 _ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- N T8 Q2 w0 ^2 k4 @4 q8 n
- } else {
$ @! ~; M! f8 p8 g - http.begin(url);# Q1 h- T1 T W5 O. w2 |! r
- }$ U: S1 w5 P5 z9 ?. v
- Serial.println("[HTTP] GET...");
1 H0 Q/ R, }/ g" \4 v - int httpCode = http.GET();3 F' V+ b! V! Z1 j+ X2 a K
- if (httpCode > 0) {
) H8 W, L; W& m+ J - Serial.printf("[HTTP] code: %d\n", httpCode);, N: o# l$ e0 O5 T
- if (httpCode == HTTP_CODE_OK) {; G/ j+ s f; l. `6 [ f5 L
- String payload = http.getString();
5 M7 V( T# H1 N# J& f Y - Serial.println(payload);( A$ f w) C( [7 W9 L7 s" B4 i) w9 n# X
- Serial.print("\r\n");8 a, |: ^! `- Z& h0 W R+ K
- return payload;
$ x4 e# C2 _% j% f - }
3 A5 z2 j: c6 h8 q( n1 Y6 _ - } else {
2 E% x1 f1 v) I$ R, ~, U* L/ e - Serial.printf("[HTTP] GET... failed, error: %s\n",
) t0 _' [3 h# V V. d" k4 @ - http.errorToString(httpCode).c_str());
- l* I. f6 u ?6 c: f H. X - }
$ J4 ?9 t" u2 Z- u# m$ b - http.end();
+ k3 s+ J! R' J; u - return "";* A9 ~% [1 B. @' l
- }2 p7 I' `* Y% Q6 R; O0 }8 c! e3 C
- }: O$ F$ O' ?6 n8 c8 M/ ]* z' `
- void mainAction() {
$ b& e" K. I& b - // 发送请求' J& @4 a; C* Z) ^
- doGet("http://google.cn");' x# A; r5 V0 z6 |/ N5 S
- }( D2 a+ e0 d$ q) K0 }4 s; y
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