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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)# A+ J3 K1 t0 h/ Y M) ^6 X
- #include <ESP8266HTTPClient.h>- u+ B0 i2 o$ x2 H# e" H8 U4 Q% b/ I8 h
- #include <ESP8266WiFi.h>
1 X. p7 }# q7 s0 B/ P; X- d - #include <ESP8266WiFiMulti.h>$ {/ J% L- g" _" x6 L& `
- #include <ESP8266WebServer.h>
$ `9 M& N1 q* J7 { - #include <arduino.h>: B# r' M' _) N5 G$ Y
- ESP8266WiFiMulti WiFiMulti;
) Z8 h H2 b/ Z$ J5 ]' @ - ESP8266WebServer server(80);
" y d) u7 C5 y8 l: H - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. H1 c9 c' X/ M8 {( ]8 s( y9 S
- ADC_MODE(ADC_VCC);% }2 r1 k) F( ]$ J: L' O
- void setup() {
7 H) |* w4 ?9 V. I9 G - Serial.begin(115200);) U4 N1 u$ i) `, e: \4 w5 S
- Serial.print("\r\n\n");
& m, i9 u- E8 I; U4 n3 |7 i3 F - pinMode(2,OUTPUT);! D9 Q2 N- D9 z) t% _9 Y
- // WIFI
, r7 N& r4 I7 d9 x - WiFi.mode(WIFI_STA);
, v: N. m9 K3 W - WiFi.hostname("Sparkle");8 ~# W3 s2 X/ E; b, N1 f
- WiFiMulti.addAP("wifi ssid", "wifi password");
: H) Y6 }8 p4 d - int tryNum = 15;
1 C6 X: K2 o' ^6 V7 a - Serial.print("Connect WiFi");
4 y! R; o+ C0 i* j( w8 z - while (WiFiMulti.run() != WL_CONNECTED) {7 O8 w5 b3 [% G5 x' D& U
- digitalWrite(2,0);; c" G, g2 K; {' Y
- delay(200);0 W5 E4 K4 L J0 b8 F$ B/ n
- digitalWrite(2,1);
" r* x0 |5 e7 Q$ p# N0 i# J - delay(300);
/ S4 X0 {9 m: r# z* i( M - Serial.print(".");
* _2 C- I+ W: B$ e' r+ T- x - tryNum--;
, j% @% z) i- a - if (tryNum == 0) {3 g7 }. m) i$ @$ |0 x5 C2 X$ a6 g
- // 1min
1 f- r& g) E Z8 I# {' ^ - // ESP.deepSleep(60e6);5 M6 M5 }6 \6 A6 C
- ESP.deepSleep(0);& v4 t9 Q& Z, _ l# D* [
- }* z& U; c7 S* |4 H, v5 M$ p
- }( W+ m% r4 f% v1 y5 O. C
- Serial.print("\r\n");
' _" |2 C" @. o6 B6 ]/ X - digitalWrite(2,1);& E! ?3 V- l4 [9 P# Q" W
- Serial.print("IP address : ");
" j) d# z: ~; N3 n; p - Serial.println(WiFi.localIP());+ C; T+ i, c# b; H, Q4 i1 w& D; O
- server.on("/", HTTP_GET, [](){8 O* d# Q3 @1 V3 ^! l
- server.sendHeader("Connection", "close");
! F, T" l$ N" p6 g - server.send(200, "text/html", serverIndex);/ @+ l0 j9 m$ Q& x7 |' p
- });
6 {5 I# c7 k0 x. l% D - server.on("/update", HTTP_POST, [](){
' E+ u9 ?: d2 b1 I" t/ |$ ]& c& W - server.sendHeader("Connection", "close");
" M% e% v- F8 z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 R; Y8 Z ~. W! D: t/ _- \; q - ESP.restart();
3 H0 f( w) @3 E2 K$ N - },[](){/ U/ k2 q4 F* M \ {) `. f. V
- HTTPUpload& upload = server.upload();6 G4 `+ a* \9 h" U
- if(upload.status == UPLOAD_FILE_START){
: k7 e6 N/ {6 `$ i- j* K - Serial.setDebugOutput(true);
. m* P9 Y* r r2 F. K7 m, u3 H - Serial.printf("Update: %s\n", upload.filename.c_str());, Y* B( a2 a" _+ o1 z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& w: z- q2 F, B6 A% [7 }
- if(!Update.begin(maxSketchSpace)){7 ]4 y6 u" C2 X( }/ `
- Update.printError(Serial);
- ` [0 r) `" z7 z/ l, S) Q+ n - }
, e8 a) B& f, Z: Z* O - } else if(upload.status == UPLOAD_FILE_WRITE){& W+ ^% T6 @4 z8 i6 G8 Q
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ T4 D; o5 p6 p" H
- Update.printError(Serial);
/ a5 K; |8 Y- a7 {, W; {' B - }+ n* _9 V* \ S5 Z: ^* l3 Y1 l
- } else if(upload.status == UPLOAD_FILE_END){
( V9 H7 L, G- D - if(Update.end(true)){, @ n: `4 B; K1 s
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" J0 T5 u! Y9 _ - } else {4 F# o" M2 z' r2 N# M% s9 A7 Y0 P2 F
- Update.printError(Serial);, u7 L: a: X/ W+ t$ x
- }! L3 d( l0 k! m" [; i
- Serial.setDebugOutput(false);
1 G- c, C8 {& i' T. Q1 n E$ H2 A - }
* [! K- W& Q+ h. y - yield();
3 G1 ]; d5 s" Z8 G - });) E, y+ U' \! o. O0 K
-
6 U# C0 ~" x; p2 B' Z - digitalWrite(2,0);
! `! T8 G; n7 I; W4 ^ - mainAction();
7 P. i- {3 Y/ O0 S$ g - if (digitalRead(0)){
# H& U8 D. |, K6 N - ESP.deepSleep(0);
b8 _% r% O, D/ ^/ A5 ] - } else {
$ X. ~4 C9 V* b0 \ - server.begin();/ x; k( K$ o5 _* `
- }
5 E0 j2 r& U; m9 B( Y% T - }
9 _1 C6 o9 ]+ ^: T - void loop() {
4 U- T" ?! i5 f4 s - server.handleClient();
9 n) s8 g. h7 Y* ` a - delay(1);* c) E( a) J; k0 L" T
- }
- T P8 _7 l) ~- ]# I - String doGet(String url){! G! u E: W7 f6 w
- if ((WiFiMulti.run() == WL_CONNECTED)) {! n. H, L; ]$ v4 ^
- HTTPClient http;
' e, c; Z. M0 q' _* j/ t( {6 z' {( T - Serial.println("[HTTP] begin...");- i( x" Z$ b+ E3 i, n
- if (url.startsWith("https")) {
9 K& c U0 x5 |' A1 `0 { A - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
9 N# B( _1 X; | - } else {
* j( c- o$ f3 {9 ? - http.begin(url);
. Z5 U0 ^! Z: Z( T: n( X( T - }% }! \5 c' y' ?/ m0 b: N3 z
- Serial.println("[HTTP] GET...");
! r; `. ~5 \. D- V8 q# a) D6 s - int httpCode = http.GET();
8 h& D. w p1 r+ E3 P4 b; b - if (httpCode > 0) {
5 W& _( G7 U0 z9 s& C - Serial.printf("[HTTP] code: %d\n", httpCode);; R& ?2 ^ a* P: w
- if (httpCode == HTTP_CODE_OK) {
# |$ ?8 V, x0 ]& \ - String payload = http.getString();
6 g: t" L7 }' C5 F: d" y - Serial.println(payload);
$ A+ z2 q- C: L; L - Serial.print("\r\n");
9 g+ S% L- u3 t+ b. U9 t - return payload;
3 a3 A/ h1 H4 H- A( P( K5 b. X - }! `4 Q) o7 Y, K7 s: ]/ d
- } else {
8 ?( x; |8 W) l+ R# w - Serial.printf("[HTTP] GET... failed, error: %s\n",& g- E: h5 z3 K9 d3 h
- http.errorToString(httpCode).c_str());0 Y& U2 _4 f4 n+ J( E
- }
; Q6 ^+ c6 y# M; r - http.end();
! D+ j7 B C2 x% s7 D. J" K - return "";
. d q: K- u* l. j; g I3 H3 ` - }) H4 t8 I: S# \1 b
- }
# Z2 v: s) q4 F - void mainAction() {/ O/ W8 S& q% w _4 [, U) Z, L
- // 发送请求1 [( r! U/ S6 j
- doGet("http://google.cn");1 R$ k; S0 V! S
- }
0 Q& k1 c8 [7 }: S- A4 I8 v' r
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