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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)
4 v7 @1 q( x& A- U: e- #include <ESP8266HTTPClient.h>; Y9 ^7 K+ u/ F9 w
- #include <ESP8266WiFi.h>
) `# a: Y; @5 J% C4 O4 x - #include <ESP8266WiFiMulti.h>8 M7 |7 D8 \4 `) M/ P3 [
- #include <ESP8266WebServer.h>& F8 `# W8 r6 k# B9 P& n
- #include <arduino.h>/ F8 C/ M2 Q) |: m
- ESP8266WiFiMulti WiFiMulti;
0 g- {. h* @) n* R - ESP8266WebServer server(80);
. l+ w/ Q z- I6 I F6 w7 H, f2 [ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: ^7 ~% I! q1 c: K+ n
- ADC_MODE(ADC_VCC);
4 q( K/ V! F& J$ ~. N. t# ] - void setup() {
3 r% w v; F9 D( \ - Serial.begin(115200);
& w: J/ i# B' |0 I - Serial.print("\r\n\n");
1 C/ F" k" b' t* c1 y* J! H# U9 t - pinMode(2,OUTPUT);- {* j9 Y9 }1 O' O
- // WIFI
) q3 c Y$ z6 Z2 H T/ p - WiFi.mode(WIFI_STA);
# G7 D" b. D( L1 R/ G2 B- u# s! s, G% | - WiFi.hostname("Sparkle");: k4 ^& o8 s" T3 l% Y0 ~- F
- WiFiMulti.addAP("wifi ssid", "wifi password");
- u* q V- ], ~" Q5 M5 S, O - int tryNum = 15;
6 R( @( ^, `; G% T; J - Serial.print("Connect WiFi");
" l" P' S, { d - while (WiFiMulti.run() != WL_CONNECTED) {
6 B ^6 F1 _6 I! d - digitalWrite(2,0);
# Z3 E0 j6 y$ f2 @7 H1 x" ? - delay(200);
- M* G% C. J, N9 q. q - digitalWrite(2,1);
, H- f. i! y- Y B6 m2 v - delay(300);* q# M! Z4 p! V( {4 u6 M
- Serial.print(".");( ~) f. A* z5 {) V; K: u; k) Z
- tryNum--;
2 V! p( h, F$ L1 m, R5 S, v" r& d, o - if (tryNum == 0) {# _ o5 C: j5 L3 U! z3 D: p
- // 1min
% e, ?' y$ O3 M& ~1 M3 x# X3 B& ] - // ESP.deepSleep(60e6);
) r% a: T1 R* }$ ]2 o8 ?( u - ESP.deepSleep(0);
* b( z+ Q K4 o$ B& P/ l# q; t* j2 i - }
* Z- s9 s% l4 s+ H) q; ?+ \ - }
2 Z/ z4 {7 Y. C4 o0 r. |+ U8 M* U - Serial.print("\r\n");; V, s# |; ?+ h& @
- digitalWrite(2,1);
$ p# E. x& v6 Q - Serial.print("IP address : ");
r7 H* a) ? h4 L - Serial.println(WiFi.localIP());& ?1 C ^; R8 E2 I. h
- server.on("/", HTTP_GET, [](){7 ^ }/ O3 ?5 [# |2 b! {; m
- server.sendHeader("Connection", "close");
8 w4 m; |5 R g* m/ k - server.send(200, "text/html", serverIndex);
/ B# n0 p$ H. k$ Z. D. n - });
1 y5 G" h( Q1 m# c) [ - server.on("/update", HTTP_POST, [](){( N4 r! _4 O) c7 T4 F/ p
- server.sendHeader("Connection", "close");6 ?# G2 Q7 }) `. w2 C
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");5 d, H# U& u$ e. ^
- ESP.restart();
6 a2 r @; J$ G5 ` - },[](){
" z( g$ s! \* n* c+ F+ g - HTTPUpload& upload = server.upload();& P: o" z6 F* @. v% L
- if(upload.status == UPLOAD_FILE_START){/ N7 R/ T0 U J6 T4 a% k+ W( B
- Serial.setDebugOutput(true);% h3 R7 Y }8 [$ G, y, \
- Serial.printf("Update: %s\n", upload.filename.c_str());7 i! Y% a0 ~; D9 o2 t! R9 b
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ v6 n& X7 W7 q+ G4 J% V# \0 Z - if(!Update.begin(maxSketchSpace)){
1 Y2 f$ I3 [/ N, B t - Update.printError(Serial);& r: b, m& m: O" g
- }$ i, `. T9 V$ \. ~3 [
- } else if(upload.status == UPLOAD_FILE_WRITE){* {! i5 r1 |3 C0 l3 ~; O! c
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* x; j/ j3 X( [4 S# x/ K - Update.printError(Serial);
p5 l2 Z' P, K; x1 ^0 n - }+ @8 n7 J" [# j$ E+ H& C
- } else if(upload.status == UPLOAD_FILE_END){
( J: s# {& I4 W - if(Update.end(true)){
: Z0 T U0 {/ i/ A1 A+ j+ g - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);" ]( t6 `2 l. ~4 j S
- } else {8 L; E/ ?" e7 }8 W
- Update.printError(Serial);
2 ?' | m/ O% q. h, l( [ - }
1 C% I3 ]8 k7 b* K0 t3 [1 Y5 Q2 v - Serial.setDebugOutput(false);
7 u% }* n+ f+ c3 ^) f- p - }
" a/ F4 M% @" d, h; |# O - yield();- M5 J- a4 b) h# p s
- });
6 ]0 I$ I. ?' \6 v! x$ d% l - ; _: ]& z( \+ }* W
- digitalWrite(2,0);+ H! Z, J) z. Y* P" S
- mainAction();( A6 C7 L2 q# ]9 b1 R- b5 {: N
- if (digitalRead(0)){
3 X5 w2 S" v8 E9 I% ^ - ESP.deepSleep(0);, ?: a, [. Z# R1 n! y( F
- } else {
' M1 Q; b& P# ~ M) I6 |: b - server.begin();8 Z7 y0 o; T( ~9 s6 T" T6 t
- }1 R7 a" [ L( t7 t/ B
- }
# m: C. [9 x7 h+ k - void loop() {
- V% l I$ d n! L4 d - server.handleClient();5 _* j5 z( R) Z9 Z1 h- U" |) z
- delay(1);
( B+ ^6 s5 T& g# j; p8 K4 P1 D3 y M l J - }
+ @; y' b: M Z- Z) P; Y3 S& ? - String doGet(String url){
2 @$ H! D; l% D) }4 q) y# C( n% ~ - if ((WiFiMulti.run() == WL_CONNECTED)) {1 k) } P8 t$ m" R4 S4 f4 F
- HTTPClient http;
3 p* `/ @0 e8 E$ e3 k; n* m - Serial.println("[HTTP] begin...");
5 c7 ~% h- Q4 z4 j0 ^ - if (url.startsWith("https")) {
, ~7 I# M) ~/ |$ R - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; `+ Q7 d) Z% O7 P2 U" p) S) S
- } else {
/ n1 u. W0 `( |! n) j( f - http.begin(url);* k. u) N( v3 S. T% t6 g9 H9 R
- }
0 ]2 Z) ^+ f" R+ h2 S - Serial.println("[HTTP] GET...");8 d5 y* B" W- P- t5 r2 R* G
- int httpCode = http.GET();
5 W2 {: w% |$ b2 ^! { - if (httpCode > 0) { t1 W" \2 s, W1 W3 V3 \8 R
- Serial.printf("[HTTP] code: %d\n", httpCode);
# W+ z; j. n; h' F5 N1 r2 G - if (httpCode == HTTP_CODE_OK) {
; j5 y9 F e" W% _5 O - String payload = http.getString();( |) Y; A% u" @3 M8 z5 X
- Serial.println(payload);% s. T) T k! X2 B! [# q
- Serial.print("\r\n");
8 K4 C/ X$ s d* J' a9 l - return payload;
* k9 t- N( c4 T7 | - }
$ @. t$ n3 j/ h2 S8 }+ y- b - } else {( T! c- h( [# l: W8 b
- Serial.printf("[HTTP] GET... failed, error: %s\n",
: f; w+ @7 V: A" V9 x6 W0 C: b - http.errorToString(httpCode).c_str());5 y9 R" E, V o
- }! A% u, d( t& l0 i" r% Z% S+ V, t# K
- http.end();5 Y/ A& p+ t& h
- return "";) S2 |* ^1 ]5 G
- }
& s& }) [5 F, p$ @ - }
* C+ u- C( T' q5 B# w' r - void mainAction() {
- l9 N& X& _$ ]9 d" r - // 发送请求$ N4 x. e, a7 D" C8 O$ T5 q
- doGet("http://google.cn");9 r3 u: l; w- U$ }5 X; n! I! N
- }
; k& O; }% a! F+ W. c8 Z4 F" R
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