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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)9 s. G3 x+ B) Z9 `9 e1 Z
- #include <ESP8266HTTPClient.h>
1 {2 {4 J+ |1 k - #include <ESP8266WiFi.h>2 X2 f0 M: G, k; |
- #include <ESP8266WiFiMulti.h>
0 \6 N" `' r& }' D4 Q - #include <ESP8266WebServer.h>7 D9 w! V8 Q0 F! g+ A% {: F
- #include <arduino.h>
# U8 m; s" _* F. \, k! _ - ESP8266WiFiMulti WiFiMulti;
+ m2 A' P2 y/ Z/ D% L9 h+ C - ESP8266WebServer server(80);
! Q9 e" S' J+ U0 n( N/ l - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";% Z( X" b# y+ e/ g$ x- ~- H: E
- ADC_MODE(ADC_VCC);- R1 h: _2 E5 @0 B
- void setup() {
6 K% T$ @1 S; x3 R; \: B - Serial.begin(115200);" k% |5 n( ~, T) [) x7 ]
- Serial.print("\r\n\n");1 p. [* _. s0 Q* \- W& A5 c
- pinMode(2,OUTPUT);# M; a/ O9 Q& Q% h5 R
- // WIFI
/ W8 p. n3 ]+ P1 ?1 Y - WiFi.mode(WIFI_STA);, U" [7 D9 N o! L" N: l
- WiFi.hostname("Sparkle");3 C6 s1 @1 N9 G
- WiFiMulti.addAP("wifi ssid", "wifi password");/ s5 g! |/ u, l8 u5 d' }
- int tryNum = 15;
0 ?0 x# ^/ f* X) ] - Serial.print("Connect WiFi");
. D+ G3 |. h1 _ - while (WiFiMulti.run() != WL_CONNECTED) {0 P4 D6 F" w6 f2 o( O$ v- @
- digitalWrite(2,0);
; {! ]5 n5 E; X w1 U - delay(200);
( b& e/ v+ t, ?7 U - digitalWrite(2,1);8 b- X* S: w3 o2 g0 Q! M3 X
- delay(300);3 f ^$ `5 Y" P! h' S0 a
- Serial.print(".");3 k d) j5 a8 k# g# I. I
- tryNum--;- `" D4 D3 i, ], Z3 y
- if (tryNum == 0) {. `# ^( _: z$ m* u# ^! u) @
- // 1min( @' o: A' J% C5 E ^
- // ESP.deepSleep(60e6);. m V, O: `, l9 l7 R. F7 \
- ESP.deepSleep(0);2 G0 ~8 y# |5 P" Z+ n; S
- }1 X/ E2 n, J2 C5 {6 v
- }
/ R J& }- ]( E, E# ]/ u7 L - Serial.print("\r\n");# k( e2 g$ X# M, Q I) `
- digitalWrite(2,1);4 M5 U9 Z1 h" J) N
- Serial.print("IP address : "); N$ k! _9 p, r* J/ w& V# `: Q
- Serial.println(WiFi.localIP());
/ U- o$ k6 \8 r+ U/ d - server.on("/", HTTP_GET, [](){% `& X9 Z- E; y# c
- server.sendHeader("Connection", "close");
/ ~: }8 w) b+ I p9 k6 I9 G - server.send(200, "text/html", serverIndex);
" k! z: s' x V* y1 k0 p& |4 A8 Y - });
. o, x2 _* O0 e$ J4 D: }+ a - server.on("/update", HTTP_POST, [](){$ E( u! s, {! {8 a( Z& q$ h
- server.sendHeader("Connection", "close");
1 [$ J& B6 I L. A - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");+ y/ q$ N, r! t5 H. C5 V9 ^
- ESP.restart();
# D: }" E% B% G; t - },[](){
) A4 r- @ ?) y+ S. n - HTTPUpload& upload = server.upload();9 ?) w2 `* e& B# ?
- if(upload.status == UPLOAD_FILE_START){" p) O# m, w5 x! e
- Serial.setDebugOutput(true);
2 g1 P/ c( J( G6 @( n7 z - Serial.printf("Update: %s\n", upload.filename.c_str());
2 \- [6 ]; [5 n+ {7 ]" a0 L% B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( p0 R( o6 O6 S0 E
- if(!Update.begin(maxSketchSpace)){
& r" d8 ?' ?1 X/ A1 I/ c - Update.printError(Serial);
3 |/ b2 |0 g# `" {) r- L - }
( ^* e$ C2 l8 R3 p - } else if(upload.status == UPLOAD_FILE_WRITE){
' l/ V5 Z1 s1 M9 D" I. v - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
/ U" t# T, }: E9 Y& ` - Update.printError(Serial);) a! W# B, d- f& u2 y" a5 \
- }
. y9 B/ z& \. o2 S7 f0 L; U - } else if(upload.status == UPLOAD_FILE_END){1 ]. W S. r! @" `$ X h7 v0 A3 @/ W
- if(Update.end(true)){
: W! [$ r# N2 Q1 ` - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) {/ S/ w: {0 W
- } else {
: K8 l2 g I$ Q% E8 p# L5 O r7 B3 o - Update.printError(Serial);
& X! v9 H! |% t; k# c - }
6 T% H1 B* Y. e$ ^7 M- o - Serial.setDebugOutput(false);
7 J, b" R7 E- q% G5 v/ V$ c/ n - }
5 _8 E, ?! O' X# ~% A! d' V - yield();# U) o0 x" m% i; X! G" }$ ~- [0 j! B
- });
$ }' D6 V3 W9 }, G -
" G) @% @/ M7 k$ N K9 ~ - digitalWrite(2,0);/ ^( ]8 X. i6 y6 c# H/ P# h
- mainAction();
3 _6 g2 b/ [- \6 @' X' {7 @& @+ I - if (digitalRead(0)){ i, {# r' J4 S7 N5 v
- ESP.deepSleep(0);
0 \) P, [( ]1 d5 ?' R' W - } else {
, Q" j& W1 ^1 b& _1 M, W5 z - server.begin();
- L) B& {8 S: K0 g7 G1 B* C - }6 c6 l+ N& J. h/ L F) F, {2 i4 w
- }
: o; m# Q$ q6 y! s$ A( e - void loop() {
% |6 r/ K1 g/ d! W: @* g - server.handleClient();
/ }9 n! d4 z. O; v% N$ x+ D - delay(1);: c. G8 q. t- Y0 i
- }. I6 U0 h+ Z" |8 d) m1 b" R/ c
- String doGet(String url){. X6 z& C; J3 R
- if ((WiFiMulti.run() == WL_CONNECTED)) {& c- z0 c( K- K& F) y5 ^
- HTTPClient http;
6 h7 e9 W; P" _2 n2 H/ G - Serial.println("[HTTP] begin...");8 Q4 ]1 w8 X# n$ X m6 N# U# K
- if (url.startsWith("https")) {$ m% i$ @, H' P! ^4 u
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");# Y5 R6 ~) g- x4 C
- } else {% K- |6 Y& U* L. ~9 C1 g
- http.begin(url);' j: f) D4 O! ^8 ?6 O
- }
0 @3 v2 \' D: u/ z. c - Serial.println("[HTTP] GET...");
: f7 @# a4 S5 t! M - int httpCode = http.GET();
: W7 \* z! ~! ^9 E1 B! ~ - if (httpCode > 0) {
. c+ i* q+ W7 C! _. G! { - Serial.printf("[HTTP] code: %d\n", httpCode);
9 F' L' f: h9 | - if (httpCode == HTTP_CODE_OK) {
6 _9 _! j8 \& x% o - String payload = http.getString();9 R7 w5 i" P& H: g) p
- Serial.println(payload);
. s$ s% q0 b% H% H. D, x" I5 V- h - Serial.print("\r\n");/ G% A% M8 P4 ~1 E& _
- return payload;
. p! Q; ?4 _: B1 E, b9 h, X4 t - }9 K/ s2 o. y; N* e% Z
- } else {/ V2 F. i" z5 {8 C% t
- Serial.printf("[HTTP] GET... failed, error: %s\n",
) q- n R4 E4 _ - http.errorToString(httpCode).c_str());
& {* q: u# s+ o4 M* h3 W- x - }
, _/ c+ I9 m) H! Y - http.end();
. M! l$ t8 A" f# U! W' n$ h. } - return "";1 o0 p8 ~: M9 k: w+ o
- }9 R) }8 @5 u8 M% s [& Y
- }# H( |! F; V# m0 m7 k3 `! t
- void mainAction() {
8 a" A4 e: R- s/ o, F+ m) g - // 发送请求
$ i2 P$ L9 v% b& k( G" u& F4 n5 T - doGet("http://google.cn"); X. L2 w6 N0 m3 _* q( D
- }
" f; O$ H/ f" \$ e# s6 p3 D, d
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