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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)1 } D2 [, E' J, F- U7 a& i. \
- #include <ESP8266HTTPClient.h>
! g4 A$ H" j I0 }. H* Q8 y5 ` - #include <ESP8266WiFi.h>
/ j3 z9 ]" N8 a% @ - #include <ESP8266WiFiMulti.h>5 B* o0 m+ V- i6 D1 k: Y3 [: A
- #include <ESP8266WebServer.h>
7 [( c4 m' [( R( f4 Y& Z$ I1 T - #include <arduino.h>& n! i1 t: f4 u9 R5 t) A( D
- ESP8266WiFiMulti WiFiMulti;
, ?* j8 j' u; K. e" E& n - ESP8266WebServer server(80);0 o4 K% K4 {2 E$ X$ R6 @! W
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
7 r5 u1 y7 S4 F, t" K9 o - ADC_MODE(ADC_VCC);
7 _9 \, J6 o9 V3 C - void setup() {
1 u! i2 C* R: H; c/ L - Serial.begin(115200);
9 n2 c+ H) Q5 f7 ^4 B: x: k/ B9 I5 f - Serial.print("\r\n\n");, p h( `7 h L7 f8 S/ q0 |) @9 r
- pinMode(2,OUTPUT);' b8 d9 | t. c' v+ [0 A
- // WIFI
N6 m+ ]7 b X5 F& X! K - WiFi.mode(WIFI_STA);
`+ l, X* P5 E8 P$ d - WiFi.hostname("Sparkle");
3 F9 j% }( d3 h+ _- A" s M1 O - WiFiMulti.addAP("wifi ssid", "wifi password");* f% q, R1 }0 K9 T
- int tryNum = 15; j9 F. ?5 n+ U; O% ~( Z
- Serial.print("Connect WiFi");9 R5 E7 U; T3 n6 N$ f
- while (WiFiMulti.run() != WL_CONNECTED) {
5 f" U6 m2 b+ i - digitalWrite(2,0);
/ Y& E, _. i k! _2 t) X" Q - delay(200);
' S6 U' b. @! b$ y& H- @4 Y( \- |5 U - digitalWrite(2,1);
5 D* |0 P0 P% z" ]8 ^ - delay(300);& Z, G& b- L8 F, `2 }/ m
- Serial.print(".");; G8 v) [' H5 R& @( a2 a
- tryNum--;7 J1 O, [- v/ B2 p3 h* A6 |
- if (tryNum == 0) {9 D' ]; m- ]3 y/ ~
- // 1min- z) w; m$ L3 x z2 Z0 @( r
- // ESP.deepSleep(60e6);
) S5 f& L P0 |" y4 X - ESP.deepSleep(0);
) ^/ p5 Y5 i/ K: ]2 M - }
+ ^5 g+ F6 r" t1 W3 S, Y3 ^ - }
' s5 M. m7 h) s4 _5 C* \$ b5 j! M - Serial.print("\r\n");
6 ~5 W6 c1 [6 @. B4 I! w8 a - digitalWrite(2,1);$ F4 \& E& e+ i( e! r9 H
- Serial.print("IP address : ");
$ t0 {2 O n0 _; l - Serial.println(WiFi.localIP());& M% [/ T( n7 A: c5 u- l
- server.on("/", HTTP_GET, [](){* f- p& ?6 _8 Z
- server.sendHeader("Connection", "close");: }* n' B7 }9 Y& _4 a! P$ w% Q$ G% L# y
- server.send(200, "text/html", serverIndex);! R$ [4 I1 A. h% d# [
- });
0 k: Y! n5 F( k U5 H - server.on("/update", HTTP_POST, [](){
- z+ q2 ~* E: K- e - server.sendHeader("Connection", "close");0 e. k$ a3 u+ j* w
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. E- H5 T7 R" M. x* A; A
- ESP.restart();
U: ]" \0 v7 ~3 b. r+ r7 _ - },[](){) n2 } _1 k3 J
- HTTPUpload& upload = server.upload();
7 s2 c+ W. x, H0 g - if(upload.status == UPLOAD_FILE_START){
' j: L3 ]6 O1 S f - Serial.setDebugOutput(true);4 ~9 N& U. C4 L1 t3 e1 k, U+ M
- Serial.printf("Update: %s\n", upload.filename.c_str());# ? c/ ^5 t9 f7 Q, }
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( ^2 a" s3 s* o/ J( A9 t/ | - if(!Update.begin(maxSketchSpace)){
& J8 d M/ m3 I1 ]- m3 r - Update.printError(Serial);
& f0 m; I9 m# |3 x - }1 n0 \9 M0 w8 ]' u
- } else if(upload.status == UPLOAD_FILE_WRITE){/ o& q. x9 ?) b
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 K1 d% G0 w4 b4 ]+ s - Update.printError(Serial);* `& g% X( P% O1 ?
- }% W' o" _* L( n4 V" x" ?7 W% k2 F
- } else if(upload.status == UPLOAD_FILE_END){1 y' X* Y3 \1 L7 i" z, J& ?
- if(Update.end(true)){
) q1 ~. \, a# V7 w9 X - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# w6 o( C: i# h
- } else {
- e# t" Q" F ?- F& C- R% a d7 l* B - Update.printError(Serial);" B3 @9 @ k" c2 x! w
- }; v3 O& b3 i- g3 E+ b3 q
- Serial.setDebugOutput(false);
* p2 x- _4 {$ P$ q$ W - }
6 B7 u* V m F - yield();
U y8 G' ?8 _0 j2 M# K! Y - });
' W+ S- Q' ?* n9 P -
4 {+ c( u/ @. G! M; E0 A - digitalWrite(2,0);( x/ L% |+ p% \
- mainAction();
$ e# f4 t3 m3 N- V1 M- Y - if (digitalRead(0)){- U% _, _4 S7 ~2 X: X
- ESP.deepSleep(0);
5 z c1 t4 W" _% m - } else {* c4 I8 q3 _9 [( [6 p/ i
- server.begin();$ l5 O% n6 s' t+ h
- }
# @8 _) K. l9 A, ] - }
3 L3 E4 {. J( c2 H. @4 Y - void loop() {
8 P, _1 G! r% y, s: ~ - server.handleClient();
3 b# t _3 F- H" I$ z - delay(1);, w. d( L0 Q3 j! s, Z+ H
- }2 s- W1 L' v9 }4 m
- String doGet(String url){
5 d. W) Q: A' K* l. W4 J/ M. L' D - if ((WiFiMulti.run() == WL_CONNECTED)) {$ l4 K- l+ I# w, Q- _
- HTTPClient http;
) O# t8 G- i2 T2 T6 U - Serial.println("[HTTP] begin...");1 q2 ]0 w9 s$ v' P# T9 M' {4 o
- if (url.startsWith("https")) {% q; ~3 |+ y0 B7 w0 |- b
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
^8 ~" w; R4 x0 z U8 ?# t - } else {
) I$ B* ]1 g" G - http.begin(url);
% P8 \: e/ ~) d8 ~7 v: a - }
# }) P( [7 f2 b, _, K/ | - Serial.println("[HTTP] GET...");
! _6 S9 S% E$ ^6 m8 h* n; k - int httpCode = http.GET();
B1 y2 L/ \+ K V - if (httpCode > 0) {& R8 H" M( ^8 F, s- j
- Serial.printf("[HTTP] code: %d\n", httpCode);
% I: N- s+ }- ]7 K7 D - if (httpCode == HTTP_CODE_OK) {
$ l4 b" }: V2 F1 B- m5 h6 w% L4 A - String payload = http.getString();
* |2 v2 F3 t6 I! Z* _+ V4 f* \ - Serial.println(payload);" o# Y$ z$ e; n
- Serial.print("\r\n");
' J8 r' {4 R* q7 M, {0 M: W( S% r5 E - return payload;& Z/ r. \7 h9 a3 [ N$ F
- }# O% b! x S% k% b* w
- } else {
, L5 W! A1 o9 ~' N) `- U3 V - Serial.printf("[HTTP] GET... failed, error: %s\n",0 m" _- e2 D! _2 Q* X
- http.errorToString(httpCode).c_str());
) g5 I* l) G- [ T' D" a0 F - }
. \# w. K" R& }, ]) | - http.end();
! N+ B: o/ |6 h. p4 ?8 d7 J - return "";! z0 n; d3 O: N8 l/ |
- }/ [. v6 x8 h7 n) f3 v8 Q/ ^( C
- }
3 b8 f/ I. e- M% H$ ^ - void mainAction() {
2 ^* V4 `! D$ H7 `8 W. n6 I$ x0 O - // 发送请求
! \0 s+ O8 G; \! f% S4 k - doGet("http://google.cn");. I0 O% h" V4 G& [- c
- }
4 j$ H; _+ {& |( x( a# x; G4 y
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