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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)5 q. a7 H2 V% A) B( T) l
- #include <ESP8266HTTPClient.h>
( a: _0 d- Y5 e# y0 A - #include <ESP8266WiFi.h>
, w, e0 h5 U3 k* V - #include <ESP8266WiFiMulti.h>0 U/ q `: L# A- w
- #include <ESP8266WebServer.h>% O2 Q1 g W `
- #include <arduino.h>
6 o6 v5 Q' |& H1 z& y - ESP8266WiFiMulti WiFiMulti;! B7 C7 X0 w* p' D/ }
- ESP8266WebServer server(80);( ]5 p4 u; n1 p# Y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! d; w7 ^! M, G, G3 m9 K8 {
- ADC_MODE(ADC_VCC);
2 U: K4 M: Y7 v4 V- L - void setup() {) |; K9 p F3 x2 v' l6 D! _4 z
- Serial.begin(115200);2 ~+ r2 B) i+ G1 Y" @6 m
- Serial.print("\r\n\n");9 _: T: y7 \9 `, Z; z' g- m' N8 M
- pinMode(2,OUTPUT);( g4 y( |1 L1 _; q$ \5 D
- // WIFI) {2 p( N# G) K7 c
- WiFi.mode(WIFI_STA);
$ n' n1 g: \, l4 b - WiFi.hostname("Sparkle");) ^# e' |+ l" G
- WiFiMulti.addAP("wifi ssid", "wifi password");/ e# u% V! q; \3 H9 E% G$ ]
- int tryNum = 15;
$ k; X+ I* j: A2 l! V - Serial.print("Connect WiFi");5 H Y( P6 L, ^2 l9 v. K* A; c
- while (WiFiMulti.run() != WL_CONNECTED) {
; v g. u$ [6 E; x5 ?" t - digitalWrite(2,0);8 X+ L' y6 ~, `% U t- ]. v( [
- delay(200);: Q& C4 ]' i7 B, y/ O
- digitalWrite(2,1);
9 V6 D+ O! I' z% ~% J7 k5 o - delay(300);5 Z) |6 i- Q8 q0 Y
- Serial.print(".");
$ E1 `" P) c6 k* P3 ~ - tryNum--;
4 `2 V0 C. _( J4 Y! X9 N2 T* q - if (tryNum == 0) {
1 J: `" A9 X1 m; h7 |+ \ - // 1min# G! Z" F$ a: d/ U$ m* [1 |0 U/ f
- // ESP.deepSleep(60e6);
( z! i- L# n" F, c t, A( h# U A - ESP.deepSleep(0);9 F4 T' M6 z9 m5 u1 ]: j
- }
& D- Z! D9 k9 X: n E- F- Q - }
' A/ B1 f z3 n7 x) Z& n& p2 I - Serial.print("\r\n");& {; H2 o5 l, u5 ~4 z' r
- digitalWrite(2,1);/ I" x h$ h( } _# D2 s, y: {
- Serial.print("IP address : ");/ o) @0 s0 S+ b
- Serial.println(WiFi.localIP());* ^' k& [! f- }* p# u% ]; C5 t, V
- server.on("/", HTTP_GET, [](){
( }$ R5 g C$ o- [# V$ Q+ @ - server.sendHeader("Connection", "close");
- S; b/ Z) S1 \- i5 u# v$ g - server.send(200, "text/html", serverIndex);
- g" j3 U5 [! w; D0 m - });
/ m8 `7 G7 O, R0 k - server.on("/update", HTTP_POST, [](){# l+ c% ?, m5 N+ f
- server.sendHeader("Connection", "close");
/ T4 J7 I. V# E( E- N2 g - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) v& j0 F* A2 o7 R" P - ESP.restart();
1 c" C- k+ r/ w - },[](){
" Z c- s, [, R( ^" N! l - HTTPUpload& upload = server.upload();: ^" A2 ^5 U+ L8 f- s
- if(upload.status == UPLOAD_FILE_START){
6 j! T$ u! S$ b: Y" q6 k - Serial.setDebugOutput(true);
! G7 P* A1 m5 s3 p5 X5 E - Serial.printf("Update: %s\n", upload.filename.c_str());8 N5 ]; d. w9 R! r# {, \
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ f4 _' {' n! f2 w. X - if(!Update.begin(maxSketchSpace)){
v. ?/ k1 o7 W7 _ - Update.printError(Serial);+ h, w5 h0 F1 e, K- J: c( ^
- }9 d& m, x+ {# w& u; q9 R
- } else if(upload.status == UPLOAD_FILE_WRITE){7 Q+ U0 |* C, K
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){4 I. c& F% Z& ~$ W+ N( F
- Update.printError(Serial);
5 F0 m5 G6 t( u - } |+ r/ k1 U# }" Q1 L! X5 }, A
- } else if(upload.status == UPLOAD_FILE_END){
: w: l9 J0 M0 |5 b. w3 z3 N9 v. y, g - if(Update.end(true)){6 R Z" \$ l; o+ ]" D6 e
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, ^, t+ W/ Z2 x" c* a - } else {
9 C ?- @$ R1 y! g: U0 t - Update.printError(Serial);: ^3 I: o E; Y
- }1 O/ [7 h' B& v5 Z; D; i
- Serial.setDebugOutput(false);
2 v( Y. i9 @: Z! E$ O8 V - }: M1 y* z; `; @, O. s# T* R7 C- z, L
- yield();3 W7 i4 C( b$ z1 A
- });! u" M/ g5 [' J5 N- i
-
v0 T2 M: i/ F7 Z" d& d - digitalWrite(2,0);
, r3 c6 K' y& [ ` - mainAction();
0 t* i% |4 _8 c - if (digitalRead(0)){
# N7 h$ o9 i7 n - ESP.deepSleep(0);& p# Y. m5 D8 |
- } else {
0 d m$ g0 ]! b( r" v - server.begin();, I/ Y0 O5 z- o& P% V2 v4 Z/ ~1 E4 T
- }
$ v% o% `- i9 Q. \; w# X( X - }5 ^% }- D' `, X! d% W
- void loop() {; @3 m% V( {6 c( K' U
- server.handleClient();2 {: p' K" [+ l8 B! C
- delay(1);5 j z1 n" k: V
- }
h8 Y/ s( v9 |8 L( Q2 P: { - String doGet(String url){
I# Z& h9 R2 a& b K - if ((WiFiMulti.run() == WL_CONNECTED)) {. Z+ W& V& T$ J# @- f, B/ m5 |
- HTTPClient http;
1 z! E9 t ?, d6 [ - Serial.println("[HTTP] begin...");
1 ~) T9 ?7 v4 f - if (url.startsWith("https")) {
, o& m$ q! z# {$ K3 S - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. V- w7 |: U) i% o
- } else {5 {' }4 j6 _! x+ J& {5 N
- http.begin(url);# U' C# X$ i" S) ~- O. L! s
- }1 k3 e9 y" f, }7 |3 b9 J$ c
- Serial.println("[HTTP] GET...");) G1 r6 f+ F0 C, n/ d: F3 t
- int httpCode = http.GET();1 S8 z9 f* J* V
- if (httpCode > 0) {1 ] D$ P# W% w. p/ q0 I, Y' b
- Serial.printf("[HTTP] code: %d\n", httpCode);
" @& ^4 n9 u2 r$ O4 T6 F2 B - if (httpCode == HTTP_CODE_OK) {' @+ G% `: x0 }. X- }/ V- G
- String payload = http.getString();
1 c) R; Y2 `5 J1 u3 b0 I k - Serial.println(payload);
! S/ c5 ^! H. w' S - Serial.print("\r\n");
- h8 {( }3 H' k( R3 s9 T - return payload;
6 p, V7 [* k s# i$ z# r* J - }( b9 W2 {3 G. a! }8 G
- } else {
3 F8 \/ c+ z- Z/ C - Serial.printf("[HTTP] GET... failed, error: %s\n",( F& I3 Z( C7 |. u
- http.errorToString(httpCode).c_str());
' B. I L, s4 E2 I% V# u- o - }9 _) w- {, H2 e$ ~, O# M0 M9 M
- http.end();
0 w+ F8 X" }; o; C - return "";) Z' P# Q* A7 @
- }; V) |! @; ^/ y, ^# i- d* G
- }
) E6 T# C1 g1 I6 U - void mainAction() {
% Z7 U- n5 I% N- Z- M# b - // 发送请求. m* z( b, \3 a3 O8 w
- doGet("http://google.cn");
3 [3 d9 f0 D5 x. U( {& ^ - }
! Y7 @" L' F! j% Y" J- `# ?
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