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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). p e- V* S W3 A. I, S) X
- #include <ESP8266HTTPClient.h>6 u- O( J/ |" Q) E1 W, T7 w
- #include <ESP8266WiFi.h>
3 T7 g: b* G! ]9 ~/ V/ H1 t - #include <ESP8266WiFiMulti.h>
3 u' D# D, |) j: q" K - #include <ESP8266WebServer.h>
+ G& V+ f" k+ v3 d9 {- d$ [ - #include <arduino.h>
) u& }( Y8 v9 y+ _ - ESP8266WiFiMulti WiFiMulti;' U" j6 J8 t$ |( ^7 w
- ESP8266WebServer server(80);
9 l9 z" Z7 Q: c - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* T2 w; B' R4 F0 q" }# K" j+ y
- ADC_MODE(ADC_VCC);
+ W6 z0 u4 u4 Q. t2 n/ Z - void setup() {9 l" E! n2 l6 E! ^. a
- Serial.begin(115200);1 I' p, V; G" I1 v7 o
- Serial.print("\r\n\n");
+ B; j1 {: E% |# n9 S# ? - pinMode(2,OUTPUT);2 H/ g2 i& c, A6 i3 y" X1 ~
- // WIFI
8 Q ?( _1 B' X" R - WiFi.mode(WIFI_STA);
, d7 k* P& Q: [* Q: N - WiFi.hostname("Sparkle");
9 [* S4 c" ^6 g' ?8 z! t$ c5 I1 F - WiFiMulti.addAP("wifi ssid", "wifi password"); p) [; I' T$ j9 R3 }3 y( c7 Y
- int tryNum = 15;% ^# f: C0 v7 R$ u" O
- Serial.print("Connect WiFi");! @) F( R/ b' i4 D; `3 ]5 l
- while (WiFiMulti.run() != WL_CONNECTED) {
) e) h; ~/ l6 R0 `0 ~% H& W$ { - digitalWrite(2,0);& {. T; f D7 x' l
- delay(200);& C" G6 @2 i9 _' ~( ^
- digitalWrite(2,1);
1 j3 t0 I8 H" g+ r - delay(300);
% ~ S! x, C8 Q2 ?9 E - Serial.print(".");
) s6 n' l" g3 t! W+ t ?( S7 ? - tryNum--;: b4 I9 h+ S2 V: @8 k) L1 x! u
- if (tryNum == 0) {3 R1 U" E$ |8 S1 B4 ^
- // 1min
0 C% X) \/ d6 F - // ESP.deepSleep(60e6);
1 M- J1 Y) ~: `$ h6 O - ESP.deepSleep(0);
" \$ O& q3 L& ^2 A9 }+ r9 L! ] - }
6 o0 c' n5 {& S: P7 m$ t# w - }) N t2 R' w- {% r6 H# q, Y' {
- Serial.print("\r\n");% |, [! O* H9 W5 [3 [: y) N1 [0 t
- digitalWrite(2,1);
6 v" `$ C: e; R# h$ x) `) D - Serial.print("IP address : ");
! t4 L% Q+ r, K - Serial.println(WiFi.localIP());
2 F$ d, ?5 [# n( r8 w - server.on("/", HTTP_GET, [](){
4 ?3 g( K0 @5 m% o5 x - server.sendHeader("Connection", "close");5 T) b: Z5 ]) S$ X' e* ]
- server.send(200, "text/html", serverIndex);
, ^& E V4 b O; T3 t- A - });" n, ^. E, r/ C+ Y
- server.on("/update", HTTP_POST, [](){; `9 \+ V I ]
- server.sendHeader("Connection", "close");
9 j6 [7 W1 O! g7 t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");; V) \& |5 B9 l, i. Q- N
- ESP.restart();
/ b- k7 ^2 W. \* K1 K! O" N } - },[](){( q4 Z: F2 T m* Z+ _ ~
- HTTPUpload& upload = server.upload();
! H8 i( z# J& ^) M4 y( h - if(upload.status == UPLOAD_FILE_START){1 \; b( {2 Z, V' A3 F# g' z% Y3 b9 o! d
- Serial.setDebugOutput(true);
' }7 i+ l: n& n, K0 E" W - Serial.printf("Update: %s\n", upload.filename.c_str());1 V6 ~; r- b5 {8 V5 m
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ G/ T% w1 K. g6 z
- if(!Update.begin(maxSketchSpace)){
% V" A) L7 S! M' ]/ b - Update.printError(Serial);
4 K8 O- x$ Y M/ [1 k - }
- r$ h( {- Y- ~8 N+ j0 U - } else if(upload.status == UPLOAD_FILE_WRITE){; m6 |% E0 G) I+ l
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
R) F6 j w7 U - Update.printError(Serial);
+ X5 u9 d6 B* }' `) ? t. g - }
8 w7 }- b: B; o! n$ |& \& r& d - } else if(upload.status == UPLOAD_FILE_END){
" I9 p9 S: T, o- J* b1 |4 n5 E* ^* y& K- T - if(Update.end(true)){8 n) w9 M; D4 v1 j
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 ^* J0 K4 k. x! `: f7 B0 E" Y - } else {" ?' g9 U7 L5 K: h
- Update.printError(Serial);
8 x. \8 o N* D' q, m( @7 y1 | - }
7 y( ^: r4 \3 M" J$ s; Z4 G( A - Serial.setDebugOutput(false);2 O4 j3 Z n' T2 o- [5 ^+ X
- }, Y* B$ E4 |; {- l7 A" ^1 X
- yield();
% w$ Q: |$ D! l3 e( a5 Z - });# O/ o% h) k" K$ t9 V
-
" B. [) R4 t& w# G. s; G - digitalWrite(2,0);! W7 W- L) D2 |, u6 o2 c% k
- mainAction();
( M3 Q! N2 n$ ]# C5 |% e4 u - if (digitalRead(0)){9 G1 M2 B! U7 D* M$ r
- ESP.deepSleep(0);
" x/ I9 j2 |4 E7 h& J4 U! R0 | - } else {, B! M! s/ y; b0 K6 X
- server.begin();, k3 N3 \+ x. m X8 y- d+ O/ W
- }& U& G5 E7 n! G c, E ~2 N& a
- }
: U8 i" A( }) @# o) ~9 t7 u5 b. d1 @ - void loop() {
' {$ c7 P2 K3 ?# z1 z - server.handleClient();$ U- @& _9 g, g3 i" G; I/ x
- delay(1);7 [' P, j( D3 p/ U8 {
- }0 Q) i2 L$ Q* s# H* W
- String doGet(String url){6 U: `4 F$ W; p
- if ((WiFiMulti.run() == WL_CONNECTED)) {1 t6 Y* ~2 c ^0 d, j6 U6 A8 n+ ^
- HTTPClient http;: u0 K$ K( d, S
- Serial.println("[HTTP] begin...");: N( k8 |% U3 r2 F. M% y
- if (url.startsWith("https")) {
0 Y" q- k2 M0 ~, O7 v! | - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 j: t0 q( @! k5 a6 Z1 E. f - } else {
" i* W* R: [% i6 Q+ `* |' F* c2 c1 z: j - http.begin(url);
5 _/ ]# M0 x7 j; @0 F/ n2 I - }) F" t% D6 b' j4 o& S& h" y5 l" ]: D
- Serial.println("[HTTP] GET...");
8 ]" {, M# f8 Z* H3 l; |5 f" J - int httpCode = http.GET();& I F$ ^: P. _
- if (httpCode > 0) {# [3 r O; M8 s3 c
- Serial.printf("[HTTP] code: %d\n", httpCode);
# w4 w# n+ F" r: y" Y9 S# P" e - if (httpCode == HTTP_CODE_OK) {4 G/ W3 q- {1 o0 m! M* l& _
- String payload = http.getString();6 _# t. r, s+ N# z
- Serial.println(payload); |9 m' p- Z2 A0 C( w
- Serial.print("\r\n");5 `9 k* a4 E! a8 [: w6 X: q, X
- return payload;
% \9 u0 H" l4 w - }
& `( @$ G: c7 x3 Z, @ - } else {
2 u5 O# m! g1 d9 B8 Q! s6 p - Serial.printf("[HTTP] GET... failed, error: %s\n",
U _, y7 ~# P+ ?* L9 _( i+ n - http.errorToString(httpCode).c_str());
q% n* f9 e- V! ]7 X - }
4 }# c, U8 M; a0 |8 F: T. ` - http.end();1 h' v+ R3 c7 Q4 f8 V
- return "";
$ }5 u0 Y _( x$ n0 b - }
4 V9 z& s- f/ a6 q$ i# Z - }5 N! z- D) n) V1 G( \
- void mainAction() {& h0 T- W7 @" u& Z
- // 发送请求: d. z: w% V3 C
- doGet("http://google.cn");, @- s: |1 }1 N0 S* o
- }$ t0 p+ `3 e: k& J- V. j$ D
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