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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)( B" J+ H0 `+ S' F" x6 Q
- #include <ESP8266HTTPClient.h>6 D/ Y f; }# F. X( }1 m% {: k
- #include <ESP8266WiFi.h>9 v) Z' ^" b0 O9 |8 ^
- #include <ESP8266WiFiMulti.h># D, b5 C% L5 U- p: F- O) @( m% G u/ [6 M
- #include <ESP8266WebServer.h>. l$ L( M# x$ g8 O. j
- #include <arduino.h>* @* w1 o! v5 ^9 |1 l7 i5 E+ B
- ESP8266WiFiMulti WiFiMulti;" F4 n8 M' R4 V. ?* J3 B0 o
- ESP8266WebServer server(80);
: l. g) ]* _" Q$ e - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& P- p s; l& K" G/ W) d+ u% i2 ` - ADC_MODE(ADC_VCC);9 _ e9 ]) x4 v9 u2 @! }* R: g& ?& v
- void setup() {
( H8 z/ k8 Q$ T$ Y - Serial.begin(115200);
& ?% i |" d2 s' a' n* h - Serial.print("\r\n\n");# A2 H3 m' G; e/ x+ U
- pinMode(2,OUTPUT);
) @4 ]$ L$ `* ~$ Q( p1 {% C \+ p$ U+ Z - // WIFI
# w( \2 P& ]# G" B/ W - WiFi.mode(WIFI_STA);
5 f: {# b- F) B8 v$ B: I C - WiFi.hostname("Sparkle");7 v: n& d+ I2 y# {/ x
- WiFiMulti.addAP("wifi ssid", "wifi password");5 W. Z* V5 G/ u% ^! a
- int tryNum = 15;; v! O" ]0 [/ E2 e; I( h, K, z
- Serial.print("Connect WiFi");
' U3 c7 X$ ~7 U% h0 m r - while (WiFiMulti.run() != WL_CONNECTED) {
2 S1 `9 S( `0 _3 a; K3 l& p, H5 v - digitalWrite(2,0);
( [3 `6 F( G4 U% @% T - delay(200);
0 J( L: L5 q* P- E3 x - digitalWrite(2,1);
+ |. G" z* e: ^' T5 O# P8 u4 M - delay(300);9 ?4 l$ `* M" M8 |/ ?
- Serial.print(".");8 Q' Q+ m& ?3 f8 V6 U- c9 z3 t2 x2 P
- tryNum--;( e" G- T) `1 v: d. Q
- if (tryNum == 0) {
g+ _5 W i3 Q; U - // 1min$ f& E# b' m2 V* D0 a8 m
- // ESP.deepSleep(60e6);
/ |7 w; u' ^$ L8 }- ~ - ESP.deepSleep(0);
2 r! p* M% K2 B& g+ Q. K: U - }
; B/ I; N8 m. U( [) y - } c' c# f" l: Z1 ?% x
- Serial.print("\r\n");
& y) w% _# _* N/ o - digitalWrite(2,1);
7 P0 B3 Y( J- V; X- L - Serial.print("IP address : ");: c, c7 R. ^6 O t
- Serial.println(WiFi.localIP());
( K9 E: C/ p6 x3 P$ u9 t - server.on("/", HTTP_GET, [](){
% _6 s% x v+ L - server.sendHeader("Connection", "close");
0 t+ a! M5 l; G! D - server.send(200, "text/html", serverIndex);
" l/ h* n" H+ a, K4 _& j - });: P( {6 h) I u* G7 l
- server.on("/update", HTTP_POST, [](){
- }" W0 H7 ^% G( C - server.sendHeader("Connection", "close");$ Q+ P+ r4 c o% X2 l/ k& l4 j
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* \' r+ _' h) j: T& C+ [
- ESP.restart();
* l. v6 ]/ w \( x0 z4 B2 M - },[](){
6 r, q2 y$ c( L5 Y# P2 ? - HTTPUpload& upload = server.upload();
1 `; n, _0 N# \" y - if(upload.status == UPLOAD_FILE_START){
6 b: D8 T* W1 W4 V% C8 t) b - Serial.setDebugOutput(true);, w, O/ a5 u4 G, T4 t7 t
- Serial.printf("Update: %s\n", upload.filename.c_str());
3 O& X7 V8 }) V) ^/ L5 R - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" H& n; s0 W0 k d! d
- if(!Update.begin(maxSketchSpace)){( d& E+ `5 c: s2 H
- Update.printError(Serial);3 f+ u- O# f4 W+ L8 j n/ {
- }- n$ |3 d/ ^8 [
- } else if(upload.status == UPLOAD_FILE_WRITE){5 F) l7 \5 J. ^# _
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ n! K! n: L6 \) s {( v0 {
- Update.printError(Serial);9 f3 ?8 o# j8 j0 g& Q
- }" t: t0 }" d2 o; o4 n* Z& x0 i6 B' d2 Z
- } else if(upload.status == UPLOAD_FILE_END){
. j' k3 S; v5 L3 M1 Y( P9 O- \ - if(Update.end(true)){" }6 d# i" V, }* i5 [
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- v% O. }9 X# [5 ]3 | - } else {
2 _& }8 `! H1 Y7 i - Update.printError(Serial);4 v, u2 K( Q; A, D) r: ^8 ]+ j% s
- }. b" x4 v* f1 Q3 G
- Serial.setDebugOutput(false);) e" ?$ \9 |+ E+ F
- }( f7 z% M2 l; B4 J' D
- yield();
4 B0 Z. z$ x. f - });
- p, y% \: i2 J -
2 \9 m' l: f4 D - digitalWrite(2,0);
- T5 b0 ]6 e3 o8 _ - mainAction();9 t% t4 F9 T7 D
- if (digitalRead(0)){( _' b* [* \8 \7 A: M* \; x& V
- ESP.deepSleep(0);
2 F+ t* i/ N4 ~8 B9 _ P8 X8 ?; u4 E - } else {
+ g8 t3 R; d2 r5 L+ \# l3 O - server.begin();+ s8 Z! u' R; S: C, |9 ?4 N: p
- }# l# V! u u# u$ c) w9 P8 c1 M
- }
" v) g v+ J. h- T `! `- B6 P - void loop() {) L& t1 f" O3 j$ A* k7 h
- server.handleClient();
2 d: ?+ q K Y: ?/ U3 v( ]3 } - delay(1);
! I8 z& m0 ]( E2 D - }
6 A! T6 g, F; E9 ?$ N0 Q0 k - String doGet(String url){
/ [* d. c0 B+ Q) ?8 ~ - if ((WiFiMulti.run() == WL_CONNECTED)) {! I4 L. W2 W. C! j
- HTTPClient http;
+ R/ C0 h+ U8 F% [0 i, d0 X9 N- @ - Serial.println("[HTTP] begin...");( j& r# N+ S8 i
- if (url.startsWith("https")) {3 H* I6 `4 |- \% ~: [3 U
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; `1 p+ }1 ?0 y6 b" O& L! k - } else {- P1 W" u. D5 G4 Q+ e6 |
- http.begin(url);6 G& [4 u5 |# ~7 y+ ?1 O
- }
* o2 a: m e3 ?# c- e - Serial.println("[HTTP] GET...");% V" {; C/ p' ~, V8 ^* P
- int httpCode = http.GET();$ C4 Y! G- }1 m( H! X' D+ m
- if (httpCode > 0) {% D* e, ?$ C. ?7 N
- Serial.printf("[HTTP] code: %d\n", httpCode);
) Y% [- U, T1 @% T2 w - if (httpCode == HTTP_CODE_OK) {
3 @" |3 V# w }) B5 ?/ w; b - String payload = http.getString();
! X! u0 D" ]* T7 |9 F) M2 e+ ]& F& j - Serial.println(payload);
3 l/ _2 l/ ]4 ?/ k: t7 d - Serial.print("\r\n");
! t+ }5 l% v7 S2 g - return payload;8 {: w" j# D" J( H" ?- K$ x
- }# T( O( a8 B1 f' \2 K8 E
- } else {
! n/ S4 G9 ^) M- h& P6 a - Serial.printf("[HTTP] GET... failed, error: %s\n",
5 a, j, F$ Z- G1 N6 b6 C - http.errorToString(httpCode).c_str());! T* D" h* v& I( }
- }* s& E& j5 S( Z0 g1 n" [; {
- http.end();
n8 k4 l8 ~; r2 k! W& r - return "";
. N( y2 o; F* ?+ l6 w: d - }
" `$ P: Y( H2 ]4 ^ - }. X' O5 ?' G! m [2 P
- void mainAction() {
" ]; |( h' o+ x8 E# D - // 发送请求- B" b3 q5 v2 }4 l
- doGet("http://google.cn");) |% V5 l) Z- r; K4 j6 H
- }
; F3 g. L* T8 G3 @
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