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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)
% ?7 U: g5 N h! G1 d, c4 u- #include <ESP8266HTTPClient.h>) W4 b$ E9 W' _+ E/ x
- #include <ESP8266WiFi.h>3 W1 O- \' X' B0 Q
- #include <ESP8266WiFiMulti.h>
- s# D. c4 ]) S, ^5 |3 f - #include <ESP8266WebServer.h>
) J3 D+ b. L, \/ K& c) o - #include <arduino.h>8 X5 B8 G2 N( Q$ W6 @
- ESP8266WiFiMulti WiFiMulti;( \4 K! a& n {$ p5 }
- ESP8266WebServer server(80);
0 [! |' w1 v+ D: ?$ \ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ z0 t3 d3 k; d! x b. I R0 e6 v
- ADC_MODE(ADC_VCC);9 W! N& s1 |" ? o- J
- void setup() {1 g& z4 Q1 _6 ?& T2 j v, j
- Serial.begin(115200);
! q5 T- b9 B) d3 G4 ? - Serial.print("\r\n\n");
$ }! A; q5 Y: w# E - pinMode(2,OUTPUT);
# I) {) X5 P: F4 B3 `# E5 U6 h2 x, s - // WIFI& [" T$ h7 E3 E! H, K" x4 A4 J
- WiFi.mode(WIFI_STA); S" ^& n5 S+ A9 [0 L/ {9 S3 k
- WiFi.hostname("Sparkle");2 h( i/ |- J2 _, }1 x
- WiFiMulti.addAP("wifi ssid", "wifi password");6 b( `8 E" O5 [9 U% s2 ?; G2 m
- int tryNum = 15;
: D; S* z Q9 Y E4 o H; ~2 I - Serial.print("Connect WiFi");: ^6 o" F. |' m7 [
- while (WiFiMulti.run() != WL_CONNECTED) {
* A9 O+ |1 g; T* b. F8 M - digitalWrite(2,0);. R: K* S9 R6 y7 d+ }
- delay(200);
9 o/ c6 q( `( O5 z( o6 w2 k% z* F - digitalWrite(2,1);
8 o7 n3 n* q% {6 V A - delay(300);
" R. n7 t3 X: D- ?3 V - Serial.print(".");) j; \8 {5 O! `9 s. A
- tryNum--;
, D1 x! c; U) C" @# ]; @ - if (tryNum == 0) {5 a, x/ }; D$ i; t& L, e
- // 1min- ]; T- d- S1 I9 U0 G3 q
- // ESP.deepSleep(60e6);3 W7 |) W+ T5 }! B# j$ d
- ESP.deepSleep(0);
; V% ]/ C/ D8 i3 I3 x - }
3 c. D. q" E1 ` K$ A ` - }
- G; |# s3 t# |3 i# d' p - Serial.print("\r\n");& ~& u2 I& w5 G+ W3 D
- digitalWrite(2,1);& o- r8 ~1 Z* u% ]3 X
- Serial.print("IP address : ");: l, d, L1 X( |! y7 o( s! [
- Serial.println(WiFi.localIP());
; r3 I( L6 G6 u( c% W - server.on("/", HTTP_GET, [](){. g$ v8 B1 D4 I% B* E* n/ o
- server.sendHeader("Connection", "close");
* V5 s3 G) I3 M$ ^ - server.send(200, "text/html", serverIndex);! R2 O* g3 n( k) B, @3 M2 b
- }); F: }% O* C/ C7 `& Q, [' r
- server.on("/update", HTTP_POST, [](){/ p, e$ I) J+ N) x0 G) |5 U; X
- server.sendHeader("Connection", "close");+ f" \3 O7 c: D& }: K4 g
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 G/ }1 d2 v `2 f6 w
- ESP.restart();
* U# f( `& R& z2 \ - },[](){$ ?* P) B/ u7 Z d' p6 p# A
- HTTPUpload& upload = server.upload();
" S2 V" \/ Y; K! A, w - if(upload.status == UPLOAD_FILE_START){/ d- p8 V6 B1 C& O/ _8 o
- Serial.setDebugOutput(true);
6 m9 N% \% S6 R B' P n - Serial.printf("Update: %s\n", upload.filename.c_str());
. t) n6 e( V# k2 _1 v! B, Q - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 t# \& G4 S' } O. W) J# C
- if(!Update.begin(maxSketchSpace)){
9 k6 f4 I- u) L4 E- c - Update.printError(Serial);
4 a8 ^! j- X6 I - }% O* x* w$ t# b/ z0 W% u
- } else if(upload.status == UPLOAD_FILE_WRITE){
l) K& c' O7 a - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ i& e3 H0 z/ @# E
- Update.printError(Serial);; u' c7 k7 u3 ~' J* V. r( r
- }
+ p4 y2 Z1 ~: C1 H0 _, f$ P - } else if(upload.status == UPLOAD_FILE_END){
' `% Y0 w; |$ [5 S5 n2 B }: \4 E - if(Update.end(true)){& l: p# V4 N1 B1 U$ Q2 S( Y6 B% T0 R
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% c2 q& Y$ H5 l' b( V - } else {+ I' P. [) o; T2 p0 V# K/ e* l# m
- Update.printError(Serial);
! O3 X% V0 G& _9 p - }
( _$ `- u9 @ s - Serial.setDebugOutput(false);: L0 _+ P. p# i% P
- }
5 g- [8 {( |; v/ } - yield();) n' S1 l4 r+ {8 O
- });
( D; k0 N$ E' Q" G, a - & G7 `8 d# |0 g- Z7 l" R
- digitalWrite(2,0);
! O1 U0 |% q" V, b4 y - mainAction();
9 \! @4 F; v+ ^$ |7 q6 | K - if (digitalRead(0)){9 w, I& D9 D( n- {
- ESP.deepSleep(0);$ j! i v0 N5 L* H- @5 r
- } else {
7 q# N7 e# j& z - server.begin();
; z! a6 ^2 ^) ^! u( Q7 _) d7 w - }
. f) r) {& b. W, |2 C3 o% ^ - }
: V; o) o# q7 |) ^6 F - void loop() {
0 t( \; a. a- f; h" N' |5 } - server.handleClient();
% t" } N2 t1 C0 q- M - delay(1);
- d# h$ n2 m9 U& P1 q/ P& ] - }/ L4 l+ g! l& i, }9 ^0 f
- String doGet(String url){1 {, G r. |& Q* o
- if ((WiFiMulti.run() == WL_CONNECTED)) {
2 F2 x P: U* R8 [& z* q# X. T - HTTPClient http;
7 Y9 `+ x7 e- Z2 R+ M0 I# g - Serial.println("[HTTP] begin...");+ ^: l; c# f0 V
- if (url.startsWith("https")) {
: I x5 R( q7 j: i$ t - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" t, w' u" B# J& u. v0 W& O - } else {
/ q0 u+ U5 P$ u6 I - http.begin(url); E. r7 y; U% H r- B4 F8 U6 ]$ s
- }
3 X& B3 Q1 E+ a1 m* K - Serial.println("[HTTP] GET...");2 z$ N9 b/ O' e; G1 z/ h* R8 {
- int httpCode = http.GET();3 }9 O2 V& I3 G$ V0 |: x6 q
- if (httpCode > 0) {/ G8 k1 D! Q9 E9 @0 i
- Serial.printf("[HTTP] code: %d\n", httpCode);
; u) p; V2 I0 O/ @ - if (httpCode == HTTP_CODE_OK) {& l! x g% E0 j) T
- String payload = http.getString();
! }* K4 x1 ^6 M8 M4 Y - Serial.println(payload);
6 g) o k1 q; i, n5 e - Serial.print("\r\n");
4 g) k9 T. i. X# j! e - return payload;" h4 X, u& D4 ^
- }
( o* v6 J9 v3 B* Y - } else {
* v3 y9 t3 E, r& d3 m1 Z; s( K! A - Serial.printf("[HTTP] GET... failed, error: %s\n",
9 P" a' B; G; @ - http.errorToString(httpCode).c_str());
4 K/ m' a, c' G - }& K3 E7 _2 P1 \5 U \
- http.end();
# B! }4 a8 \" B$ I/ F# @) h- C+ k - return "";; ?. t: M M S9 {; H
- }
: [& w" V% v5 f/ W - }
* I! e4 I, X( k, u/ \$ B+ D" [ - void mainAction() {
$ [1 d3 L% C5 I+ y8 F7 m7 Q. r. q+ V - // 发送请求3 t& O- d$ Q' U% _
- doGet("http://google.cn");$ b! S5 o5 Q' {
- }; w9 Q' N) z+ h$ H, U. N( i
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