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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)/ ^# I$ N: A+ @+ _$ _1 c
- #include <ESP8266HTTPClient.h>
; h8 X, ]8 o# j2 L+ S8 e - #include <ESP8266WiFi.h>3 Y: A: Z/ [- R9 I
- #include <ESP8266WiFiMulti.h>
$ O a: B6 q! P* l+ x& b - #include <ESP8266WebServer.h>+ n" B4 N, p2 E! a/ k) |
- #include <arduino.h>
8 y5 Z5 ?# I6 h9 R5 l4 a3 A - ESP8266WiFiMulti WiFiMulti;
6 @" Z: Q: T3 ~$ T& E& ?1 G7 T - ESP8266WebServer server(80);# O6 |3 M7 [& ]; m% x% _! K" V
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
; N, L1 M; h3 r3 V+ h& Z3 } - ADC_MODE(ADC_VCC);1 y# R/ y1 t8 m4 c; V, S
- void setup() {; E$ j. c3 {5 @% j
- Serial.begin(115200);
; w$ I6 K* F% x3 I - Serial.print("\r\n\n");
. S8 S# ~6 ^! i - pinMode(2,OUTPUT);
- y* c$ M) @1 r - // WIFI! D, Y4 N0 ]3 ~" w+ _" l
- WiFi.mode(WIFI_STA);5 c; I/ i0 | j# `7 \7 h" B6 ]
- WiFi.hostname("Sparkle");8 O7 s; K& l/ o* z
- WiFiMulti.addAP("wifi ssid", "wifi password");. d+ U2 N; ]3 n, V p8 j+ L
- int tryNum = 15;
# X2 x$ I1 O% o$ b, } - Serial.print("Connect WiFi");
4 @7 h7 |5 t; t/ w/ b$ ? - while (WiFiMulti.run() != WL_CONNECTED) {3 N) r1 }) |7 W8 |( }/ B, {
- digitalWrite(2,0);
7 ~2 ~! @9 Q* j+ R& a: B - delay(200);7 n6 ]8 _5 G( h" i t
- digitalWrite(2,1);
9 W3 Q- W/ \$ ^4 M" a( @& O - delay(300); P3 ?( b5 c O" |0 @: S0 f5 g
- Serial.print(".");) u6 d8 o2 m6 [
- tryNum--;
4 @' l( K) E" }2 W& c - if (tryNum == 0) {
. X7 R9 E% T6 Q J* [+ N4 s - // 1min H% C& X4 |; s
- // ESP.deepSleep(60e6);% t( w9 O1 u: E! v- Z: V3 v: w
- ESP.deepSleep(0);5 v5 @2 i3 E) I+ W, D. H S) s
- }
9 L2 g7 N1 h2 @+ `! C$ P3 H - }
6 H# u! _8 V' Q - Serial.print("\r\n");
1 e( f9 V }* K+ u - digitalWrite(2,1);
6 ^0 d) d7 }: C9 C" a! i - Serial.print("IP address : ");
' B2 `1 g* V# h7 B* @6 K - Serial.println(WiFi.localIP());
0 `! c! \: E: G6 J4 q* g k8 N# r - server.on("/", HTTP_GET, [](){
3 P5 W" z( E: C( y - server.sendHeader("Connection", "close");5 B" R) C5 F) G* A
- server.send(200, "text/html", serverIndex);$ N9 b* e, n5 p/ u3 o9 i
- });% Y# B9 L# l" L2 N
- server.on("/update", HTTP_POST, [](){1 j6 B/ R" I0 n+ S7 j9 M0 o! K( u
- server.sendHeader("Connection", "close");' [( M& M/ {' g6 W( w" q0 B. I
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 U4 E' B1 A" J
- ESP.restart();
$ a8 h/ X# T1 K4 @7 J* i - },[](){9 C- t9 ^0 z( o. b* L; t/ k3 C
- HTTPUpload& upload = server.upload();% J* V$ j, h# V4 D b& [
- if(upload.status == UPLOAD_FILE_START){
' X, [$ |: G1 T' J" Q6 T3 C1 ~2 b - Serial.setDebugOutput(true);, h& A2 L+ C9 b# J) m% y! M2 d9 M
- Serial.printf("Update: %s\n", upload.filename.c_str());8 j2 W k! `% K
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 c, Y; u' B4 ?: D" F! O: q% Z, A - if(!Update.begin(maxSketchSpace)){! {% A2 A( Z- F& f1 T( \8 T
- Update.printError(Serial);; Y6 N0 _" E) f2 B0 W- K* _* J
- } Z' h' C/ E3 [& X9 ^
- } else if(upload.status == UPLOAD_FILE_WRITE){
9 x3 P0 k' i% V& @ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( b, e& ^% T7 q& S
- Update.printError(Serial);
8 ~% n. y) T9 D- J - }
7 [) u! o1 |+ r: H9 c: Q# J: h: l - } else if(upload.status == UPLOAD_FILE_END){" `) V) i" F4 J! k
- if(Update.end(true)){; y- y8 ^7 J2 m1 \% W1 ]- ~3 T: |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);4 Y. G9 |6 {+ c8 D
- } else {
8 j- A- i& K5 H$ A4 S. c: v - Update.printError(Serial);
' ~, ^) A2 V; r- C0 e, I9 J - }$ }5 k- D0 Q9 N5 P" a
- Serial.setDebugOutput(false);' d, @' N$ V5 A# Z. n. e ^
- }
0 \% T- b# P4 G- L+ X3 w - yield();
. @ v; _$ u! q: T; }- u; s0 E) a - });
, Z' C, _- t- o' J/ ]) v* _7 p - ! b4 i1 s6 e. r2 {3 g2 D- X
- digitalWrite(2,0);4 [, O# |! S+ U& v2 o0 Y
- mainAction();6 B0 D+ a& I' Q
- if (digitalRead(0)){) ?) I' L; h0 a7 _" L
- ESP.deepSleep(0);
/ B5 w/ I* X2 W( T - } else {
$ b. v7 E9 j$ z. E+ `% [1 U$ H - server.begin();
/ j" U" `* }; x$ ]0 A6 n# R/ K - }3 f, m% u& a; `
- }$ Z. L0 M; D- p* k6 R# e
- void loop() {- j z. z5 z% L$ N# U
- server.handleClient();4 Y' m+ E/ Q% U" a$ W
- delay(1);( J5 N# v/ m P/ C
- }
# w, z+ x/ O! T. x1 { - String doGet(String url){
, i9 w4 N: E2 o D - if ((WiFiMulti.run() == WL_CONNECTED)) {
a; d) u! o2 m - HTTPClient http;
4 Z3 G# g! f, q" O2 U - Serial.println("[HTTP] begin...");" l4 F/ D; Y) T5 i8 ]8 r
- if (url.startsWith("https")) {
' L* `6 m% m8 |2 B, F - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. v& j, l5 d r3 ]& f2 i/ T0 N7 _
- } else {: o, O! W7 g. K* s- Z
- http.begin(url);9 }. N' ^# W3 l7 |# L4 ]8 @" c+ C
- }0 H' n) v3 S) x0 p w
- Serial.println("[HTTP] GET...");# y8 f: Y) \) r% X7 J! n0 P2 G
- int httpCode = http.GET();
4 b3 e" B& Q1 b7 j - if (httpCode > 0) {
( d6 w4 ^. z2 B% m& Q - Serial.printf("[HTTP] code: %d\n", httpCode);
0 m) _! ^! Y) S - if (httpCode == HTTP_CODE_OK) {
8 L: `: _. l( z0 d E& U( K - String payload = http.getString();
( A. b' O n7 o6 ^& r - Serial.println(payload);! V& t. h4 m, G. V) r8 J+ b, }
- Serial.print("\r\n");" I8 @2 \5 _$ R @. _2 z w8 \# r
- return payload;
3 |+ k% S% U( ]3 G: i - }2 s! A0 T, _# C7 C2 d: q, F+ D
- } else {: N8 T9 K9 J0 L9 E
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 Q( Z% j' k4 E5 W( S" _ - http.errorToString(httpCode).c_str());( o, m$ p( n% d* N
- }
8 [9 T. G" k6 A5 _* b - http.end();/ t2 O/ o5 r: U# w( u: l
- return "";& R# O, @$ |* `9 F( K. k! y
- }8 R1 ~" V7 D) ?
- }
T i- c- R! g - void mainAction() {% Y# B. w: E2 c6 v
- // 发送请求
8 o+ s- m- A/ F" y3 ^4 s9 M4 Z - doGet("http://google.cn");; g9 `" |, M* C6 |0 N* h
- }
' u" [- M% q, I1 C1 ^
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