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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)6 |* x( B2 k/ p: L: @: c$ _# v
- #include <ESP8266HTTPClient.h>
5 R8 h! t' b" q7 P - #include <ESP8266WiFi.h>8 @. S9 A0 s+ L u2 l9 ?
- #include <ESP8266WiFiMulti.h>
, r8 F* B) v- I. `1 Q- q6 b% k2 \ - #include <ESP8266WebServer.h>
1 P0 D5 d$ ]+ Z+ z) Y. F" F& f - #include <arduino.h>9 t Y$ |6 v2 ? M+ g. e! z
- ESP8266WiFiMulti WiFiMulti;' v5 O) y. _% J" o6 R
- ESP8266WebServer server(80);
1 g5 J8 U# ?7 c+ S - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ {) p, a" z, q - ADC_MODE(ADC_VCC);8 n, G4 a+ N1 E( ]2 r, i
- void setup() {$ S) k, D( C1 V
- Serial.begin(115200);& V; _- p4 @+ v0 z5 Q, m
- Serial.print("\r\n\n");$ ^5 U! s; A0 ^+ o
- pinMode(2,OUTPUT);
: [$ o/ w4 E( ?% a5 u" _$ [& d/ ^ - // WIFI
. K0 C2 U% ^3 e$ l8 p) C* b - WiFi.mode(WIFI_STA);( \ P+ H, o8 @9 B5 }! b
- WiFi.hostname("Sparkle");
5 U4 U! ]' O3 O( Z* x - WiFiMulti.addAP("wifi ssid", "wifi password");
- m% M: |/ g% {5 h - int tryNum = 15;
) R- S' s0 }9 B9 k2 f2 S5 ~, t - Serial.print("Connect WiFi");$ q* d% d# E' Y, t$ u- a% j# r% G9 ^
- while (WiFiMulti.run() != WL_CONNECTED) {
, _8 {) d( b% i( w2 \5 e9 V - digitalWrite(2,0);) Q6 `) o0 b6 T) |
- delay(200);
+ E' f! T9 d$ F; F P% I) J# x - digitalWrite(2,1);' d1 o. [ u" a9 _# p
- delay(300);: ]: H3 l/ {3 [/ T; n* Q+ d8 ?
- Serial.print(".");9 v( _$ C3 C8 j
- tryNum--;
, f- _3 e( E4 u! k: d( Z - if (tryNum == 0) {
1 N7 F6 n0 M' Z - // 1min3 F' r& s4 ~; P, m1 k) @1 S
- // ESP.deepSleep(60e6);' F, u7 E- w$ x% F4 t
- ESP.deepSleep(0);5 S, G& H0 N& z& a+ U* M& u) f) _
- }! R7 B: }6 u: E: B0 H& s
- }; h; O6 E/ X6 t9 ~% Z) v
- Serial.print("\r\n");+ w/ s7 f& z* O, C1 z0 ]5 L
- digitalWrite(2,1);
! F' d y# u# ?# I; z- W - Serial.print("IP address : ");
$ Y& {9 B& s5 F# D - Serial.println(WiFi.localIP());
# J- v7 v ]$ P- @ - server.on("/", HTTP_GET, [](){
% ?- O+ e5 i5 F4 \ - server.sendHeader("Connection", "close");
. P" `* ^) z% c - server.send(200, "text/html", serverIndex);0 S3 j3 R H9 b0 x
- });* Q0 m' S, B8 ~$ t& }
- server.on("/update", HTTP_POST, [](){; C }4 N5 M( d/ P4 `" u) d
- server.sendHeader("Connection", "close");9 F0 D/ c4 M( V! j! e; D* j, o4 ^! w
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ g3 y, [: x( E4 V8 I
- ESP.restart();- o d2 a+ C: `" _+ z+ ?. z$ N' ^7 m
- },[](){' f' i% Q6 g" G% d2 O1 N! T0 }
- HTTPUpload& upload = server.upload();
! k! o/ I0 }7 F - if(upload.status == UPLOAD_FILE_START){
3 h$ J& N0 O* P, C- j - Serial.setDebugOutput(true);
: z' h3 Q# L: K3 f7 t% {5 O" s6 { - Serial.printf("Update: %s\n", upload.filename.c_str());
# M- g7 M% R9 ]+ t0 P5 U - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
0 a5 f' d3 q/ }) J$ z& m8 n - if(!Update.begin(maxSketchSpace)){+ y! B3 i. Q2 ]; K! S
- Update.printError(Serial);
+ V+ [( d$ K: `4 ]- E - }7 ~- }5 A( j% a( y; s! ?. ~% F
- } else if(upload.status == UPLOAD_FILE_WRITE){# g: X; C- v, r
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* v8 t) E7 ?5 b( F: i2 }
- Update.printError(Serial);4 Q q4 I& e1 d! p* }
- }' b- v# G1 ~! c- Q# H, ]
- } else if(upload.status == UPLOAD_FILE_END){: _7 I o, x6 }( _! z. n2 q9 Q
- if(Update.end(true)){/ c _; h) `$ h, e
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( ?2 ?3 ~) Z3 C3 l& m
- } else {
" C) Y: M4 @0 `7 f& l0 p3 s - Update.printError(Serial);
- Q3 P* b$ D/ r5 _; P - }9 G1 _2 U: U0 F0 l1 C$ V
- Serial.setDebugOutput(false);
4 T; V( ~; T- q7 b1 J5 \; K - }% V7 P% _7 d; }( x4 m
- yield();
, m+ H; N' E) @/ Z, f - });
6 o& }# Z- h; x. k0 O- R: b1 E+ [ -
0 c& p: j g& h4 y* Q$ l, e7 L - digitalWrite(2,0);
" V# \4 s$ e# E- c$ H0 A# J# g - mainAction();( W4 N4 t3 k, {4 Z. n, L: z7 U
- if (digitalRead(0)){
8 i0 D/ r$ E" C2 j2 U4 E6 @ - ESP.deepSleep(0);
& [5 k, y4 {8 O( r2 K - } else {
3 p! {+ q$ V" f" v" U) p* {3 \ - server.begin();( P/ s2 l/ x v9 ?" O- I) Y1 f" Y
- }
; b8 u/ ` y6 v - }7 K9 c& W$ r1 E6 d$ y
- void loop() {7 ~1 E! U0 ^- m! D: W' @9 K1 E
- server.handleClient();) q$ P0 h7 f: h7 J$ B' [
- delay(1);
- r2 r& U5 Y8 E5 W4 T7 s - }, j0 K: O; \5 g; N
- String doGet(String url){' l! g, e; h# P" A# A
- if ((WiFiMulti.run() == WL_CONNECTED)) {
. X& F8 c8 A- q+ z# m/ s: n0 r2 m' k; J - HTTPClient http;
% ]! P5 ?) ] K' s7 R - Serial.println("[HTTP] begin...");# A( w& o' |! U
- if (url.startsWith("https")) {
) F& z1 }. S3 O5 | - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! N: d$ T; w1 e$ o/ L- @2 ?' g3 x
- } else {
5 M# V8 ~" a/ F: b - http.begin(url);, W" U: o& |& P6 x: k1 r
- }
' |' b+ x- G4 u8 R0 @& j7 F" Q* V - Serial.println("[HTTP] GET...");% c, t0 Z; C0 N" B
- int httpCode = http.GET();
* c ]* i& D, w6 [* f: G* f - if (httpCode > 0) {+ W. `$ G: p* B: [& A
- Serial.printf("[HTTP] code: %d\n", httpCode);
4 e- C& Y5 Q) s& T$ ?# g" l7 X; F9 ^ - if (httpCode == HTTP_CODE_OK) {
' c* [- y& I A: y' S - String payload = http.getString();0 N# g1 q( V, \- _ q. [
- Serial.println(payload);
' Z. K/ b7 e* E7 \% O - Serial.print("\r\n");
; R/ H/ I6 Q; C- c# l: v# \; X; q - return payload;) T3 _# I( N' d$ |. X: V- T- B
- }
. o! Z9 q! f0 z2 V - } else {3 Y' @) B9 |3 U$ K9 J
- Serial.printf("[HTTP] GET... failed, error: %s\n",
) U6 z; p7 G3 V8 _% q - http.errorToString(httpCode).c_str());
6 w5 P" r1 y) F6 L - }! z, V3 E3 B$ o$ u
- http.end();, E4 G+ W: f$ ?3 K) K5 ^# ^% x
- return "";# X+ D: ^+ e0 {7 p# ?
- }& _" M4 X# Y, D4 K7 o6 {8 M
- }* L/ X4 i& {8 |' Y* }; f
- void mainAction() {* e$ x4 Q0 Y3 G2 ^" V2 P
- // 发送请求
9 p% [5 s6 k6 L/ _: X* o% u - doGet("http://google.cn");7 u5 b/ z {* |8 B) F
- }/ p# ]) r& |7 x1 B8 K. f" W
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