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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)
! t' |' v& V" o, [2 n/ b a# k- #include <ESP8266HTTPClient.h>$ r; R2 `/ \9 n; k2 A/ J9 }
- #include <ESP8266WiFi.h>
. o1 e) X4 S( K8 i1 p9 U* \ - #include <ESP8266WiFiMulti.h>% N) C; c. Z" Q" j5 [1 v
- #include <ESP8266WebServer.h>
+ i/ w4 y9 W" a0 U - #include <arduino.h>' h' n/ y0 v6 R6 {
- ESP8266WiFiMulti WiFiMulti;
& }3 M3 k6 f" H$ l - ESP8266WebServer server(80);$ h: ^; m; Q$ U: y- N7 |
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, C8 ^ N; i( P6 E1 h( W
- ADC_MODE(ADC_VCC);
- k6 ]" A0 c9 u8 B, J - void setup() {$ x% t v& e2 B4 L8 G8 a, n
- Serial.begin(115200);
; i7 K9 F( \" g& T& ~+ T/ `/ I - Serial.print("\r\n\n");8 J0 U+ y7 B! [. u
- pinMode(2,OUTPUT);4 j0 l+ L* W! b" G( ?
- // WIFI
+ Y, V! _/ s3 j9 d9 x4 x - WiFi.mode(WIFI_STA);
' O! j" a% |# O: ^* a, R - WiFi.hostname("Sparkle");4 y1 Q3 y+ e, u& j
- WiFiMulti.addAP("wifi ssid", "wifi password");% t1 P M5 g- x+ O0 R1 m, [" n. I
- int tryNum = 15;
' O7 V1 J/ k4 k# Q- W' T& c; G L - Serial.print("Connect WiFi");/ o+ `: V; m; `: v- C
- while (WiFiMulti.run() != WL_CONNECTED) {
4 {1 V, W8 s. D( x - digitalWrite(2,0);
' G! U) o9 }* F. p- y( C1 l3 L% ^ ? - delay(200);9 Q, z( ]9 h) U$ c$ c# Z! u
- digitalWrite(2,1);
9 I9 z( {( \, j" A9 ^ - delay(300);
# R6 ?6 D# Y5 f7 K9 V8 |2 B3 r9 F0 q - Serial.print(".");
0 i/ t @' j4 e/ Q6 H/ u8 {, e - tryNum--;$ B6 V4 z8 H; n1 r* {) x* c
- if (tryNum == 0) {8 e: k @2 W5 J4 s6 G% N* r$ [
- // 1min- j* g$ c0 z7 K5 R
- // ESP.deepSleep(60e6);
; |" k- z$ i: k2 r: i6 D - ESP.deepSleep(0);% g% ]! N3 U8 s1 g
- }% a) c% J; S* ]2 {
- }
* z9 i ^+ u& t. u K) @ - Serial.print("\r\n");3 d- h! J( ~- ]8 t O$ g: V$ P
- digitalWrite(2,1);2 A- L7 h4 V3 R! V; G
- Serial.print("IP address : ");9 ?3 a/ X+ I% I# n$ W
- Serial.println(WiFi.localIP());
6 s! c: d; B8 Y% \* G4 F - server.on("/", HTTP_GET, [](){
# Q* M; w0 |( A! A - server.sendHeader("Connection", "close");! C, q2 e+ t4 r; Y6 \
- server.send(200, "text/html", serverIndex);8 O" u3 P" l3 l
- });
, K3 v1 t& K. q1 Q, i5 u( n - server.on("/update", HTTP_POST, [](){1 s' `* W5 G8 K) D
- server.sendHeader("Connection", "close");/ I# g' r# |9 S9 S# Z
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 Z* _9 s: h9 ?1 b/ s; S( U- z; d% q
- ESP.restart();7 e# _3 i+ ]2 n/ u& w
- },[](){" ], U. z+ V" }% j! h1 G
- HTTPUpload& upload = server.upload();
$ r4 N& R( v! v, t - if(upload.status == UPLOAD_FILE_START){
8 l0 c5 s. B0 M2 [% m - Serial.setDebugOutput(true);
0 X. H* v$ ]* F/ s# w. E7 i - Serial.printf("Update: %s\n", upload.filename.c_str());
: a% F2 G9 W' n. c9 c6 b/ ~; A( } - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# H& I+ S' @- }$ g7 [5 |$ d1 r
- if(!Update.begin(maxSketchSpace)){; t3 p# Y; p' C* ?
- Update.printError(Serial);% B. c5 D! |' p. u
- }6 @1 f ]% P# S5 }1 {2 |
- } else if(upload.status == UPLOAD_FILE_WRITE){
" R r0 @" s9 I! c: m+ A - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 F) O* q X% h4 V, @ - Update.printError(Serial);
; X5 T7 J$ n( `, t# n9 x. V - }
- K/ \) c3 q4 [; @- n- d: n - } else if(upload.status == UPLOAD_FILE_END){2 y. } ~) l0 C. \6 W+ {
- if(Update.end(true)){9 a; c% i$ _. \9 ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);" o# D& Y' _. h0 _) v' j
- } else {% j; I- D" h- P3 `3 W
- Update.printError(Serial);
% x/ L9 G* w1 @0 X - }4 U* r7 f2 M4 M; V9 \
- Serial.setDebugOutput(false);9 x- v A7 s: p* {5 b$ N
- }4 K' t0 W2 A) U8 h( U
- yield();
0 n, r8 I- b2 V9 x - });, C9 a$ h: S9 z" B
- 3 Z, A4 _+ `4 @) B2 _
- digitalWrite(2,0);6 n* y/ t8 O+ ?) Z K
- mainAction();
9 K8 Z; g' j& X+ q: P - if (digitalRead(0)){
% p# m0 o2 ?; T0 P - ESP.deepSleep(0);8 j9 E4 \( F% _0 w7 t
- } else {/ [1 c) ?1 G5 S; ~% ~
- server.begin();
9 b O$ a: t: x - }
: H6 E) i1 \- e! m# C' b/ ~ - }3 j: E# u- R9 H. m; w9 G; i
- void loop() {
. S8 X7 L* _3 {- { - server.handleClient();
; _+ p5 b. l! C+ u6 q6 Y - delay(1);
0 s( l. B8 s# ~2 B; z# h% I - }0 |, A$ J* L" V6 N9 X6 n* C
- String doGet(String url){
+ b# i: H8 R# T/ V2 Y, R - if ((WiFiMulti.run() == WL_CONNECTED)) {! x5 V" D# t5 h( R% j
- HTTPClient http;
# l$ C L9 A2 i; o7 F2 ^ - Serial.println("[HTTP] begin...");- c8 O. R& }; P q
- if (url.startsWith("https")) {; `+ z: {# p' h% \! {: m5 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 N3 p4 ~' o0 S& B+ a$ @6 L! [4 @ - } else {
5 b5 h- q. y2 F% X4 A. f4 Y$ v - http.begin(url);
5 E8 B. H" |. R, Q- Y - }( H$ p/ u7 `& d* \5 M1 `8 D" i
- Serial.println("[HTTP] GET...");& e2 n5 w4 b. a7 F) T3 m" }
- int httpCode = http.GET();
4 f6 ^) {3 w# r# ` - if (httpCode > 0) {
8 P" L- L% C: d1 A- h5 p8 ^ - Serial.printf("[HTTP] code: %d\n", httpCode);
' d d8 U9 R5 j( V - if (httpCode == HTTP_CODE_OK) {
) {+ b% T% {! z8 {4 w - String payload = http.getString();! q2 h+ ?: m5 u. I# c1 D' g9 B
- Serial.println(payload);
; t* P7 j9 B, R - Serial.print("\r\n");
& b {! ]+ O+ ?2 R; c% a - return payload;
, S$ T8 w9 L" Q! q8 n& {" X! b7 f - }
r) E! u/ X$ s' k* { - } else {8 G+ H1 n- T8 D' d2 _7 L1 v* J* K
- Serial.printf("[HTTP] GET... failed, error: %s\n",
4 G1 I d% G2 K9 Y - http.errorToString(httpCode).c_str());! b$ ]' }; f7 R
- }- J/ Y7 I5 l2 q8 @: {+ Y- }
- http.end(); `6 @, x* p+ M; K% O1 O
- return "";/ a/ G, r! B# s8 t
- }
- k! V, F7 P- m, y4 f' u! N - }, M; Q' _9 d3 z" f
- void mainAction() {" `5 k8 R" G4 k9 ~% @
- // 发送请求
, \( _% ]; }, [; H - doGet("http://google.cn");0 R% L5 e+ |4 `' H
- }9 ]( _6 V9 ~# B; @5 L
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