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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)) ^) F6 _4 I8 M0 _
- #include <ESP8266HTTPClient.h>
7 }& J' _1 F* x, ]7 ~1 c) q( P2 g6 h - #include <ESP8266WiFi.h>
- q. [9 K6 k d - #include <ESP8266WiFiMulti.h>% _+ f& ]2 c. }) f5 O! q
- #include <ESP8266WebServer.h>! F- b3 T, ~" B! t
- #include <arduino.h>$ f9 j* C1 u- |) U L% O9 d
- ESP8266WiFiMulti WiFiMulti;
. `( C- v; t3 e0 E: }" D - ESP8266WebServer server(80);
4 } T, s1 S/ |+ X - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; t6 x+ p8 n4 r) ?1 s2 s
- ADC_MODE(ADC_VCC);
( i2 b3 i) O1 N! ~) ] - void setup() {8 l7 h9 }' p7 o) \* q
- Serial.begin(115200);
! [3 l( _- ]) p, j - Serial.print("\r\n\n");- W( c) X3 |( k* p- h
- pinMode(2,OUTPUT);
% T' Z3 x% R% O+ t2 G, M7 J; D/ l - // WIFI
4 N( i& U, O' E1 | - WiFi.mode(WIFI_STA);. n0 x" A- b# H/ @0 }, d, H
- WiFi.hostname("Sparkle");
% K+ z x! B6 E8 F - WiFiMulti.addAP("wifi ssid", "wifi password");$ h B* H1 a: a3 T/ U6 L+ X8 t
- int tryNum = 15;4 J- e$ V6 ~. L/ ~) w
- Serial.print("Connect WiFi");
" t+ N! w5 J6 ?1 ?6 z3 V7 Q - while (WiFiMulti.run() != WL_CONNECTED) {
; |# j2 F& _% _2 v3 \! ~ - digitalWrite(2,0);
) ~/ s' V! r) R - delay(200);* u, P5 M2 U: j! M5 h
- digitalWrite(2,1);
8 m/ V- m2 v" K) n0 A( }; _8 T - delay(300);
8 q/ p, w7 B8 k E; J/ Y* e- N z - Serial.print(".");) Q; k! W( _0 Z$ I5 h) ^
- tryNum--;
9 z+ q1 Q$ X/ r0 b6 z) L% V - if (tryNum == 0) {
3 ~: j+ [- S! x) L - // 1min
/ h; s+ Z4 c- C, }& p9 C - // ESP.deepSleep(60e6);( H; V! |# P+ `# w& W
- ESP.deepSleep(0);
' v* P2 G, t& }0 x0 L - }
# x- T5 B$ `+ U6 A K - }
' U5 n Y" m+ Y& c- \. F4 ` - Serial.print("\r\n");2 r, V$ g5 h- D3 K. t
- digitalWrite(2,1);3 g) ]# a2 y) L8 H' L8 m9 Q" r
- Serial.print("IP address : ");$ J3 ]2 A0 d/ R$ O+ E/ X
- Serial.println(WiFi.localIP());
' z9 c9 k/ H# X$ g" }8 F4 C% R - server.on("/", HTTP_GET, [](){* @* U* ^0 [+ D4 Y& G7 Z Y) z
- server.sendHeader("Connection", "close");! q) g. x( f4 P( B. D
- server.send(200, "text/html", serverIndex);
, z& F& x# U% H2 j - });
: j% T& X6 u% j - server.on("/update", HTTP_POST, [](){
- n( D5 h4 ?# @ - server.sendHeader("Connection", "close");
' R# [2 @1 e: w; U2 R2 C - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( S" G# _& Z1 ]9 w2 ?. F! |
- ESP.restart();7 [' x! Q# E$ v* Y
- },[](){! E3 f) \9 I8 U9 G6 S8 e( x
- HTTPUpload& upload = server.upload();& D. K! ^# T: |* l/ m o
- if(upload.status == UPLOAD_FILE_START){
1 V A, s, e4 ^) D5 S - Serial.setDebugOutput(true);8 J# E( b8 M( ~ Y0 P
- Serial.printf("Update: %s\n", upload.filename.c_str());+ W2 y# I2 ~1 A
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 d0 L6 Q. y. t, h% N
- if(!Update.begin(maxSketchSpace)){
& n+ M3 L( d9 [' O+ W - Update.printError(Serial);9 ~0 X6 ]4 |5 Z0 K( X ?3 Y
- }
+ s3 Q( ]. g' h( y8 f0 p- f - } else if(upload.status == UPLOAD_FILE_WRITE){& B R! Y1 u( N- k+ X; n* r4 E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 h' `& H4 w- T) t - Update.printError(Serial);
( r% N$ n- j a - }; Q* J6 e2 n0 `* l
- } else if(upload.status == UPLOAD_FILE_END){
7 H% E1 i% B( @/ g8 a9 R - if(Update.end(true)){
7 O. c, E* Z4 c2 `( d' S - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ I& a5 ?" H( h% ^
- } else {
" D9 Q r5 D, q! t - Update.printError(Serial);4 |1 U( n+ e$ K+ Y
- }0 p% o& b. T) w+ x0 C& m m+ E
- Serial.setDebugOutput(false);
" ?/ n: }! A/ Z4 _, g. H - }9 r$ k7 _: I, z: J* L; w. B! J
- yield();
( {+ V! B: |0 j/ q0 v: q3 s* k. `+ w - });. `% v# v& X/ A' \
- + {0 G7 L) E; a5 |
- digitalWrite(2,0);
2 Z" j6 l& n) J1 _ - mainAction();5 j8 t/ t; T# e M% W
- if (digitalRead(0)){
: M* B' e/ R9 F" j K8 J# @ - ESP.deepSleep(0);
( v7 F# p. h- {2 }- I2 e* C% c - } else {6 r! \* O8 D( f; m. n
- server.begin();
( U2 V: Q% c7 x6 i9 z" Y: N) Z - }# Y7 l/ h4 _, e; n3 }
- }
# p' @% `0 i8 ?( E& d, e - void loop() {
: z1 e1 U0 d# X6 P - server.handleClient();6 F1 o* S/ @& k- [7 N! _
- delay(1);# [/ z# p0 e- {0 s9 F, K6 a8 b. W
- }
& R. U! Z2 }$ x+ e - String doGet(String url){
! [) H9 K, i% U7 Z! j& f! F; `2 o - if ((WiFiMulti.run() == WL_CONNECTED)) {
! @: o2 G& F9 a. |9 x - HTTPClient http;8 R# D* p$ ~4 R( m- G
- Serial.println("[HTTP] begin...");/ Y' Q9 N$ G9 C% |& d
- if (url.startsWith("https")) {+ o* W9 @% J% E( ^/ M4 B) {
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, F" r6 g1 W3 o6 w/ a% {- \6 h - } else {
# y" c: p" f, {3 J - http.begin(url);
/ P% w- ?8 }" X8 Y7 O$ h' Z - }
( ]) }( B7 m% ^ @ - Serial.println("[HTTP] GET...");
6 v6 Z: o6 O! {7 F2 i - int httpCode = http.GET();
$ H4 \ p( t0 c# A - if (httpCode > 0) {/ F! @$ c& W$ i8 ^! l0 M
- Serial.printf("[HTTP] code: %d\n", httpCode);
. T4 H1 ?+ y. V% h" m - if (httpCode == HTTP_CODE_OK) {
6 M% x' d% w; u' w5 b! n* K7 @ - String payload = http.getString();% i7 I7 Q2 ?2 B- F2 ^
- Serial.println(payload);( n* D c8 e- k+ [/ q
- Serial.print("\r\n");
& x( E! g4 ~' u1 U! H- n - return payload;
, c: S% w! ~) t, q! b# _/ w- B - }. L7 p) f8 l# S- e
- } else {
" {2 S1 m$ N" I/ S* g3 k0 a( h - Serial.printf("[HTTP] GET... failed, error: %s\n",
- a- A$ T: f: i6 m - http.errorToString(httpCode).c_str());6 U& ?) H+ w3 a: e5 j O
- }. [2 u4 o# N) K- R
- http.end();+ z: e$ i+ x9 B* R7 K6 J
- return "";# x) W: X% |4 s5 r; m9 x A
- }- J% F4 f( S& _) [! k- M
- }
0 {5 W- c# u0 w) O$ x. G - void mainAction() {
- w* L, `. {" |) g8 w* M - // 发送请求
4 s0 N. J; o5 k! U - doGet("http://google.cn");. D1 C. a' g& S4 c+ J6 X
- }
& B9 | l" W) F' P) l7 y- p3 N
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